GREEN DRAIN - WATERLESS HYBRID TRAP SEAL - 3.5-4″ (90-100MM)

Introducing the Green Drain GD3.5-4, designed for floor drains with a 90mm grate opening and a 100mm drainpipe. This advanced drain seal is commercially certified and expertly crafted to prevent unwanted odours, sewer gases, and insects from entering the drain grate. With its four flexible silicone sealing ribs, installation is a breeze, even in openings with size discrepancies. The GD3.5-4 opens for drainage and securely closes when water flow ceases, making it suitable for new builds and retrofits lacking trap primers.