McAlpine 110mm Anti Cross-Flow and Rodent Barrier Valve.

4"/110mm Anti Cross-Flow and Rodent Barrier Valve
For use with any McAlpine rigid or flexible WC connector with 4"/110mm rubber outlet seal
For use where special measures are necessary for control of rodents as recommended in Approved Document H1 The Building Regulations 2000 (2002 Edition)
Prevents cross flow if fitted to back to back WC pans
Deters rodents from entering the building through WC
Can be installed horizontally or vertically
Manufactured in black polypropylene to prevent light penetration

McAlpine ARB-1 Anti Cross-Flow and Rodent Barrier Valve Specification:

Brand : McAlpine
Model No : ARB-1
Product Diameter : 110mm (4" inch)
Product Length : 64 mm
Conntction Type : Compression Connection
Construction Material (Plumbing) : Rubber
Product Type : Anti-Cross-Flow & Rodent Barrier
Pack Size : 1