Ideal for use alongside single lap tiles in limited applications, this Corodrain D-Type Universal Valley Trough stands as a narrow valley trough, identified as heavy duty (type: DX). It is equipped with a 35mm sanded strip to enhance mortar adhesion and is used for roofs with pitches ranging from 17.5° to 55°, accommodating a maximum 15° variation between two rafter pitches.

Brand Name	Harcon
Colour	Grey Blue
Material	GRP
Manufacturer Model No	DX30
Wear Type	N/A
Type	Valley
Certifications Met	BBA Approved under Cert No. 89/2153
Country of Origin	N/A
Protects From	UV light, Acid Rain
Waterproof	Yes
Number of Pockets	N/A
Length	3m
Width	410mm
Minimum Pitch	17.5 Degrees
Range	Corodrain
Fire resistance	SAB to BS476 part 3 and Class 3 BS476 part 7