Or download the Harmer Technical Manual - Threshold/Channel drainage pages 74-84 from our Downloads Page
130mm Straight Channels
The 130mm wide channels have a choice of 6 types of grate with load class K3 made from Grade 304 galvanised mild steel. Lengths slot together via tongue & groove joints.
Facade Slot Channels
Facade slot channels are located directly against a facade when a narrow slot is required. No height adjustment is provided
Terrace Slot Channels
Terrace slot channels are used for small terrace areas where paving construction depth is shallow (80-130mm).