McAlpine ARB1 Anti Rodent Barrier For WcCons

McAlpine ARB‑1 Anti‑Rodent / Anti‑Backflow Barrier Valve for WC Connectors

Product Overview:
The McAlpine ARB‑1 is a polypropylene anti‑crossflow and rodent barrier valve designed to fit 4″ (110 mm) WC connector outlets. It blocks rodents and prevents backflow in toilet installations, ideal for back‑to‑back pans in both domestic and commercial applications 

Key Features:

• Compatible with any McAlpine rigid or flexible WC connector featuring a 4″/110 mm rubber outlet seal

• Manufactured in black polypropylene to prevent light penetration 

• Door supported by stainless‑steel mesh to resist rodent gnawing

• Effective both horizontally and vertically 

• Complies with Approved Document H1 (Building Regs 2000) and BS EN 12056‑2:2000 plumbing standards 

Benefits:

• Prevents sewer gases, liquid backflow, and rodent entry from soil pipes

• Ideal protection for shared wall installations or connected systems

• Stainless‑steel mesh flap resists rodent damage and ensures reliable sealing

• Simple, tool-free push-fit installation onto existing WC connectors

Applications:

• Back‑to‑back toilet installations in flats, hotels, restrooms, and any shared plumbing setups

• Compliance with rodent control and sanitary standards in building regulations

• Suitable for both new constructions and refurbishments requiring anti‑rodent measures

Conclusion:
The McAlpine ARB‑1 offers effective and compliant protection against rodent intrusion and backflow in WC installations using 110 mm outlet connectors. Its durable build, easy installation, and adherence to regulations make it an essential barrier device for both residential and commercial plumbing systems.