The McAlpine WF1 Wasteflow with FJ10 Trap is a plumbing fitting designed for use with kitchen sinks. The WF1 Wasteflow is a standard waste outlet that connects to the sink, while the FJ10 Trap is a bottle trap that prevents sewer gases from entering the room. The WF1 Wasteflow is a 1.5 inch BSP threaded waste outlet, which means it can be connected to standard pipework using a compression fitting or similar. The outlet is designed to fit into a 90mm diameter hole in the sink, and comes with a rubber sealing washer to ensure a watertight seal. The FJ10 Trap is a bottle trap that fits between the waste outlet and the pipework. It is designed to prevent sewer gases from entering the room by creating a water seal. The trap has a 75mm water seal and is suitable for use with a range of sink styles and sizes. Overall, the McAlpine WF1 Wasteflow with FJ10 Trap is a reliable and easy-to-install solution for ensuring a clean and odour-free kitchen environment. ・ 50mm Water Seal ・ 90-114mm plain end outlet ・ Suits WC squatting pans, slop hoppers or similar appliances ・ Will connect to 110mm pipe ・ Manufactured in high density polyethylene