Brett Martin Drain Inspection Chamber Manhole Cover and Frame 50kN for Driveway - 450mm Round Plastic

The Drain Inspection Chamber Manhole Cover and Frame by Brett Martin is ideal for residential use. Made from tough polypropylene, it boasts a strong, webbed design, allowing it to withstand a maximum load of 50kN when supported by a concrete plinth. Compatible with Brett Martin's SfA7 adoptable and non-adoptable inspection chambers, it meets EN124 A15 standards and Building Regulations Part H1. The 450mm diameter lid and frame reduce risks of accidents, injury, and removal. Designed for easy installation, the complete 450mm Inspection Chamber Assembly includes a watertight, push-fit system with a chamber base, 300mm deep riser, cover and frame, sealing rings, and chamber reducer. Ribbed risers with connecting lugs ensure stable installation. The chamber base suits both 110mm and 160mm drainage layouts, with branch outlets for optimized flow.. Brett Martin Drain Inspection Chamber Manhole Cover and Frame 50kN for Driveway - 450mm Round Plastic