Threshold Channel Drain Accessories with Black Mesh Grating A15

The Threshold Channel Drain Accessories with Black Mesh Grating A15 is a multi listing built around the Clark Drain CD 422 domestic linear drainage system and its compatible accessories. It combines the main 1 metre channel section with key fittings used to create junctions, finish runs and improve maintenance access.

The Threshold Channel (1m Length) is the main drainage run used across garage thresholds, patios, pathways, play areas and landscaped surfaces. Manufactured from recycled polypropylene with a snap-lock black mesh grate, it provides a practical surface water channel for pedestrian and light domestic use.

The Quad Junction is used where multiple drainage runs need to meet or where a change in direction is required. It is useful on wider paved areas, courtyards or layouts collecting water from several directions.

The End Cap Pair includes male and female end caps used to terminate channel runs neatly. Pre-marked knockouts allow horizontal outlet formation where required.

The Debris Trap is fitted to help catch leaves and silt before they enter connected pipework, reducing the risk of blockages and making maintenance easier.

All components are designed for use with the CD 422 system. The channel and quad junction are rated A15 to BS EN 1433:2002, making them suitable for pedestrian areas, patios and garage threshold applications. They are not intended for regular heavy vehicle traffic.

Where watertight joints are required, use a suitable mastic sealant during installation.

Complete CD 422 drainage channel and accessory range

Black mesh snap-lock grating for easy removal

Includes channel, quad junction, end caps and debris trap

Suitable for patios, thresholds and landscaping areas

A15 load class rated channel components

Recycled polypropylene non-rusting construction

Easy clip connection between channel runs

Helps create tidy and serviceable drainage layouts

Manufactured from recycled polypropylene for lightweight handling, corrosion resistance and low maintenance service. The black mesh grate is also polypropylene and clips securely into place.

Product type: Linear drainage channel system and accessories
System compatibility: Clark Drain CD 422
Material: Recycled polypropylene
Grating type: Black mesh snap-lock grating
Load class: A15
Standard: BS EN 1433:2002
Use areas: Garage thresholds, patios, paths, landscaping, play areas

Threshold Channel (1m Length):
Length: 1000mm
External width: 128mm
External height: 117mm
Internal width: 90mm
Internal depth: 105mm
Weight: 1.75kg
Waterway area: 534cm²

Quad Junction:
Overall dimensions: 175mm x 165mm x 130mm
Internal width: 100mm
Weight: 0.3kg
Max flow through: 4.3 litres/sec
Waterway area: 120cm²

End Cap Pair:
Includes: 1 male cap, 1 female cap
Feature: Pre-marked horizontal outlet knockouts

Debris Trap:
Use: Debris and leaf collection for compatible channels