The McAlpine BSW10 1½" Backnut Bath Waste is a type of waste fitting for a bathtub that includes a 70mm stainless steel flange and a 1½" tail. The tail is unslotted, meaning that it does not include any holes or perforations for water drainage. The waste also includes a plug, which can be used to stop the flow of water from the bathtub. The plug can be removed when the bathtub needs to be emptied. Overall, the McAlpine BSW10 1½" Backnut Bath Waste is a durable and reliable option for any bathtub that requires a waste fitting with a 1½" tail and a 70mm flange. ・ 1½" BSP ・ Black PVC plug ・ White Plastic Backnut ・ The polished stainless steel flange eliminates the problem of chrome plating deterioration ・ 1½" Tail