The McAlpine BSW12T is a black plastic slotted basin waste with a backnut. It has a 1.25" diameter and comes with a 60mm stainless steel flange and a 3.5" tail with a black PVC plug. This type of basin waste is commonly used in bathroom sinks and washbasins. The slotted design allows water to drain efficiently while trapping any debris that may have entered the basin. The backnut ensures a secure and tight fit between the waste and the basin, preventing leaks. The 60mm stainless steel flange provides a sturdy base for the waste to be mounted on, while the 3.5" tail allows for easy connection to the drainage pipe. The black PVC plug is used to seal the waste and prevent any unpleasant odours or gases from entering the room. Overall, the McAlpine BSW12T is a reliable and durable basin waste that is easy to install and maintain. Slotted Black PVC plug Available with or without chain and stay 1.25" BSP 60mm flange McAlpine BSW12T 1.25" Black Plastic Slotted Basin Waste - Backnut Model: 60mm Stainless Steel Flange x 3.5" Tail with Black PVC Plug