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Below Ground

Backflow Valves
Backflow Valves

The Harmer SML system, with its comprehensive range of fittings and accessories, offers an innovative, whole-building solution for soil, waste and rainwater drainage installations. The system is fully compatible with other market-leading Harmer and Wade drainage products, including roof, floor, shower and channel drains

The Harmer SML socketless lightweight cast iron soil and waste system is BBA certified and meets the Standard of BS EN 877. The SML system combines modern, state-of-the-art drainage technology with the unique characteristics and benefits of cast iron as a preferred material for drainage installations

Download the Harmer SML Lightweight Cast Iron Soil & Waste Technical Brochure from our downloads page.

* PLEASE NOTE: Free delivery threshold of £1,000 apply to these made-to-order products

N.B. These products are coming to the website soon! In the meantime they acn be ordered by Phone on 0800 644 44 26 or email sales@rainclear.co.uk

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  1. 100mm SML Below Ground Pipes - 3 metre length
    100mm SML Below Ground Pipes - 3 metre length
    Was £174.23 Sale Price £116.73
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    Estimated Delivery date is 17/05/2024
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  2. 150mm SML Below Ground Pipes - 3 metre length
    150mm SML Below Ground Pipes - 3 metre length
    Was £346.08 Sale Price £231.87
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  3. 200mm SML Below Ground Pipes - 3 metre length
    200mm SML Below Ground Pipes - 3 metre length
    Was £585.94 Sale Price £392.58
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  4. 250mm SML Below Ground Pipes - 3 metre length
    250mm SML Below Ground Pipes - 3 metre length
    Was £861.98 Sale Price £577.53
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  5. 300mm SML Below Ground Pipes - 3 metre length
    300mm SML Below Ground Pipes - 3 metre length
    Was £1,073.62 Sale Price £719.33
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  6. 100mm SML Below Ground Duo Coupling
    100mm SML Below Ground Duo Coupling
    Was £20.19 Sale Price £13.53
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  7. 150mm SML Below Ground Duo Coupling
    150mm SML Below Ground Duo Coupling
    Was £40.43 Sale Price £27.09
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  8. 200mm SML Below Ground Duo Coupling
    200mm SML Below Ground Duo Coupling
    Was £90.30 Sale Price £60.50
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  9. 250mm SML Below Ground Duo Coupling
    250mm SML Below Ground Duo Coupling
    Was £152.12 Sale Price £101.92
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  10. 300mm SML Below Ground Duo Coupling
    300mm SML Below Ground Duo Coupling
    Was £161.14 Sale Price £107.96
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  11. 100mm SML Below Ground Two Part Ductile Iron Coupling
    100mm SML Below Ground Two Part Ductile Iron Coupling
    Was £29.31 Sale Price £19.64
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  12. 150mm SML Below Ground Two Part Ductile Iron Coupling
    150mm SML Below Ground Two Part Ductile Iron Coupling
    Was £59.95 Sale Price £40.17
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  13. 200mm SML Below Ground Two Part Ductile Iron Coupling
    200mm SML Below Ground Two Part Ductile Iron Coupling
    Was £133.72 Sale Price £89.59
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  14. 100mm SML Below Ground Ductile Iron Brackets
    100mm SML Below Ground Ductile Iron Brackets
    Was £17.47 Sale Price £11.70
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  15. 150mm SML Below Ground Ductile Iron Brackets
    150mm SML Below Ground Ductile Iron Brackets
    Was £33.13 Sale Price £22.20
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  16. 200mm SML Below Ground Ductile Iron Brackets
    200mm SML Below Ground Ductile Iron Brackets
    Was £126.58 Sale Price £84.81
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  17. 100mm SML Below Ground Single Bend 15 degree
    100mm SML Below Ground Single Bend 15 degree
    Was £39.23 Sale Price £26.28
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  18. 150mm SML Below Ground Single Bend 15 degree
    150mm SML Below Ground Single Bend 15 degree
    Was £70.46 Sale Price £47.21
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  19. 100mm SML Below Ground Single Bend 30 degree
    100mm SML Below Ground Single Bend 30 degree
    Was £39.23 Sale Price £26.28
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  20. 150mm SML Below Ground Single Bend 30 degree
    150mm SML Below Ground Single Bend 30 degree
    Was £70.46 Sale Price £47.21
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  21. 100mm SML Below Ground Single Bend 45 degree
    100mm SML Below Ground Single Bend 45 degree
    Was £39.23 Sale Price £26.28
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  22. 150mm SML Below Ground Single Bend 45 degree
    150mm SML Below Ground Single Bend 45 degree
    Was £70.46 Sale Price £47.21
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  23. 200mm SML Below Ground Single Bend 45 degree
    200mm SML Below Ground Single Bend 45 degree
    Was £204.55 Sale Price £137.05
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  24. 250mm SML Below Ground Single Bend 45 degree
    250mm SML Below Ground Single Bend 45 degree
    Was £408.38 Sale Price £273.61
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  25. 300mm SML Below Ground Single Bend 45 degree
    300mm SML Below Ground Single Bend 45 degree
    Was £555.53 Sale Price £372.21
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  26. 100mm SML Below Ground Rest Bend
    100mm SML Below Ground Rest Bend
    Was £114.11 Sale Price £76.45
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  27. 150mm SML Below Ground Rest Bend
    150mm SML Below Ground Rest Bend
    Was £281.30 Sale Price £188.47
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  28. 100mm SML Below Ground Long Radius Bend - 22 Degree
    100mm SML Below Ground Long Radius Bend - 22 Degree
    Was £69.76 Sale Price £46.74
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  29. 100mm SML Below Ground Medium Radius Bend - 45 Degree
    100mm SML Below Ground Medium Radius Bend - 45 Degree
    Was £69.24 Sale Price £46.39
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  30. 150mm SML Below Ground Medium Radius Bend - 45 Degree
    150mm SML Below Ground Medium Radius Bend - 45 Degree
    Was £69.24 Sale Price £46.39
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  31. 100mm SML Below Ground Long Radius Bend - 88 Degree
    100mm SML Below Ground Long Radius Bend - 88 Degree
    Was £92.00 Sale Price £61.64
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  32. 150mm SML Below Ground Medium Radius Bend - 88 Degree
    150mm SML Below Ground Medium Radius Bend - 88 Degree
    Was £276.22 Sale Price £185.07
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  33. 100mm x 100mm SML Below Ground Single Branch - 45 Degree
    100mm x 100mm SML Below Ground Single Branch - 45 Degree
    Was £63.20 Sale Price £42.34
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  34. 150mm x 100mm SML Below Ground Single Branch - 45 Degree
    150mm x 100mm SML Below Ground Single Branch - 45 Degree
    Was £148.50 Sale Price £99.50
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  35. 150mm x 150mm SML Below Ground Single Branch - 45 Degree
    150mm x 150mm SML Below Ground Single Branch - 45 Degree
    Was £152.62 Sale Price £102.26
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  36. 200mm x 100mm SML Below Ground Single Branch - 45 Degree
    200mm x 100mm SML Below Ground Single Branch - 45 Degree
    Was £383.55 Sale Price £256.98
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  37. 200mm x 150mm SML Below Ground Single Branch - 45 Degree
    200mm x 150mm SML Below Ground Single Branch - 45 Degree
    Was £383.55 Sale Price £256.98
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  38. 200mm x 200mm SML Below Ground Single Branch - 45 Degree
    200mm x 200mm SML Below Ground Single Branch - 45 Degree
    Was £412.30 Sale Price £276.24
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  39. 250mm x 250mm SML Below Ground Single Branch - 45 Degree
    250mm x 250mm SML Below Ground Single Branch - 45 Degree
    Was £919.93 Sale Price £616.35
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  40. 300mm x 300mm SML Below Ground Single Branch - 45 Degree
    300mm x 300mm SML Below Ground Single Branch - 45 Degree
    Was £1,327.03 Sale Price £889.11
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  41. 100mm x 100mm SML Below Ground Single Branch - 88 Degree
    100mm x 100mm SML Below Ground Single Branch - 88 Degree
    Was £63.20 Sale Price £42.34
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  42. 150mm x 100mm SML Below Ground Single Branch - 88 Degree
    150mm x 100mm SML Below Ground Single Branch - 88 Degree
    Was £123.79 Sale Price £82.94
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  43. 150mm x 150mm SML Below Ground Single Branch - 88 Degree
    150mm x 150mm SML Below Ground Single Branch - 88 Degree
    Was £137.56 Sale Price £92.17
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  44. 100 x 100 x 100mm SML Below Ground Double Branch - 45 Degree
    100 x 100 x 100mm SML Below Ground Double Branch - 45 Degree
    Was £91.80 Sale Price £61.51
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  45. 150 x 100 x 100mm SML Below Ground Double Branch - 45 Degree
    150 x 100 x 100mm SML Below Ground Double Branch - 45 Degree
    Was £266.09 Sale Price £178.28
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  46. 150 x 150 x 150mm SML Below Ground Double Branch - 45 Degree
    150 x 150 x 150mm SML Below Ground Double Branch - 45 Degree
    Was £358.51 Sale Price £240.20
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  47. 100 x 100 x 100mm SML Below Ground Double Branch - 68 Degree
    100 x 100 x 100mm SML Below Ground Double Branch - 68 Degree
    Was £100.60 Sale Price £67.40
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  48. 100 x 100 x 100mm SML Below Ground Double Branch - 88 Degree
    100 x 100 x 100mm SML Below Ground Double Branch - 88 Degree
    Was £87.12 Sale Price £58.37
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  49. 100mm SML Below Ground Single Branch Access - 88 Degree
    100mm SML Below Ground Single Branch Access - 88 Degree
    Was £121.14 Sale Price £81.16
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  50. 100mm SML Below Ground Round Access Pipe
    100mm SML Below Ground Round Access Pipe
    Was £87.34 Sale Price £58.52
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  51. 100mm SML Below Ground Square Access Pipe
    100mm SML Below Ground Square Access Pipe
    Was £174.81 Sale Price £117.12
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  52. 150mm SML Below Ground Square Access Pipe
    150mm SML Below Ground Square Access Pipe
    Was £273.56 Sale Price £183.29
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  53. 200mm SML Below Ground Square Access Pipe
    200mm SML Below Ground Square Access Pipe
    Was £550.00 Sale Price £368.50
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  54. 250mm SML Below Ground Square Access Pipe
    250mm SML Below Ground Square Access Pipe
    Was £892.88 Sale Price £598.23
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  55. 300mm SML Below Ground Square Access Pipe
    300mm SML Below Ground Square Access Pipe
    Was £1,066.29 Sale Price £714.41
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  56. 100mm SML Below Ground Long Access Bend - 88 Degree
    100mm SML Below Ground Long Access Bend - 88 Degree
    Was £121.33 Sale Price £81.29
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  57. 100mm SML Below Ground Blank End
    100mm SML Below Ground Blank End
    Was £14.63 Sale Price £9.80
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  58. 150mm SML Below Ground Blank End
    150mm SML Below Ground Blank End
    Was £20.88 Sale Price £13.99
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  59. 200mm SML Below Ground Blank End
    200mm SML Below Ground Blank End
    Was £93.35 Sale Price £62.54
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  60. 250mm SML Below Ground Blank End
    250mm SML Below Ground Blank End
    Was £189.95 Sale Price £127.27
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  61. 300mm SML Below Ground Blank End
    300mm SML Below Ground Blank End
    Was £238.36 Sale Price £159.70
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  62. 150 x 100mm SML Below Ground Reducers
    150 x 100mm SML Below Ground Reducers
    Was £93.71 Sale Price £62.79
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  63. 200 x 100mm SML Below Ground Reducers
    200 x 100mm SML Below Ground Reducers
    Was £166.60 Sale Price £111.62
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  64. 200 x 150mm SML Below Ground Reducers
    200 x 150mm SML Below Ground Reducers
    Was £166.60 Sale Price £111.62
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  65. 250 x 150mm SML Below Ground Reducers
    250 x 150mm SML Below Ground Reducers
    Was £343.26 Sale Price £229.98
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  66. 300 x 150mm SML Below Ground Reducers
    300 x 150mm SML Below Ground Reducers
    Was £477.83 Sale Price £320.15
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  67. 250 x 200mm SML Below Ground Reducers
    250 x 200mm SML Below Ground Reducers
    Was £343.26 Sale Price £229.98
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  68. 300 x 200mm SML Below Ground Reducers
    300 x 200mm SML Below Ground Reducers
    Was £477.83 Sale Price £320.15
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  69. 300 x 250mm SML Below Ground Reducers
    300 x 250mm SML Below Ground Reducers
    Was £477.83 Sale Price £320.15
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  70. 100mm SML Below Ground Plain Trap
    100mm SML Below Ground Plain Trap
    Was £72.69 Sale Price £48.70
    You Save 33%
    Estimated Delivery date is 17/06/2024
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  71. 100 x 100 x 45 Deg SML Below Ground Single Inspection Chamber
    100 x 100 x 45 Deg SML Below Ground Single Inspection Chamber
    Was £402.22 Sale Price £269.49
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  72. 150 x 100 x 45 Deg SML Below Ground Single Inspection Chamber
    150 x 100 x 45 Deg SML Below Ground Single Inspection Chamber
    Was £521.25 Sale Price £349.24
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  73. 150 x 150 x 45 Deg SML Below Ground Single Inspection Chamber
    150 x 150 x 45 Deg SML Below Ground Single Inspection Chamber
    Was £661.37 Sale Price £443.12
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  74. 100 x 100 x 100mm SML Below Ground Double Inspection Chamber - Square
    100 x 100 x 100mm SML Below Ground Double Inspection Chamber - Square
    Was £472.71 Sale Price £316.72
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  75. 150 x 100 x 100mm SML Below Ground Double Inspection Chamber - Square
    150 x 100 x 100mm SML Below Ground Double Inspection Chamber - Square
    Was £612.47 Sale Price £410.35
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  76. 150 x 150 x 150mm SML Below Ground Double Inspection Chamber - Square
    150 x 150 x 150mm SML Below Ground Double Inspection Chamber - Square
    Was £777.16 Sale Price £520.70
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  77. 100 x 100 x 100mm SML Below Ground Double Inspection Chamber - Rectangular
    100 x 100 x 100mm SML Below Ground Double Inspection Chamber - Rectangular
    Was £930.57 Sale Price £623.48
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  78. 150 x 100 x 100mm SML Below Ground Double Inspection Chamber - Rectangular
    150 x 100 x 100mm SML Below Ground Double Inspection Chamber - Rectangular
    Was £1,243.83 Sale Price £833.37
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  79. 100mm SML Below Ground Bell Mouth Gulley
    100mm SML Below Ground Bell Mouth Gulley
    Was £80.59 Sale Price £54.00
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  80. 150mm SML Below Ground Bell Mouth Gulley
    150mm SML Below Ground Bell Mouth Gulley
    Was £132.56 Sale Price £88.82
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  81. 200mm SML Below Ground Bell Mouth Soild Plate
    200mm SML Below Ground Bell Mouth Soild Plate
    Was £27.35 Sale Price £18.32
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  82. 150 x 150 x 150mm SML Below Ground Double Inspection Chamber - Rectangular
    150 x 150 x 150mm SML Below Ground Double Inspection Chamber - Rectangular
    Was £1,551.90 Sale Price £1,039.77
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  83. 400mm SML Below Ground Pipes - 3 metre length
    400mm SML Below Ground Pipes - 3 metre length
    Was £1,631.16 Sale Price £1,092.88
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  84. 200mm SML Below Ground Bell Mouth Grate
    200mm SML Below Ground Bell Mouth Grate
    Was £18.68 Sale Price £12.52
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  85. 100mm SML Below Ground Puddle Flange
    100mm SML Below Ground Puddle Flange
    Was £96.40 Sale Price £64.59
    You Save 33%
    Estimated Delivery date is 17/05/2024
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  86. 150mm SML Below Ground Puddle Flange
    150mm SML Below Ground Puddle Flange
    Was £125.50 Sale Price £84.09
    You Save 33%
    Estimated Delivery date is 17/05/2024
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86 Items