The McAlpine ST90CPB-S is a shower trap with a water seal designed to prevent odours and gases from entering the bathroom. It has a 90mm x 50mm body and a 1½" outlet, which is a standard size for most shower waste pipes. The trap also features a removable 110mm flange, which makes it easy to clean and maintain. This flange is compatible with standard shower trays and waste fittings, making it easy to install in most bathrooms. Overall, the McAlpine ST90CPB-S is a reliable and durable shower trap that is designed to provide effective drainage and prevent unpleasant odours and gases from entering the bathroom. ・ Flanges available in White or Chrome Plated Plastic, or Chrome Plated Brass ・ Suitable for shower trays with a 90mm waste hole ・ 50mm Water Seal ・ 1½" BSP Thread ・ Supplied with 135° Bend - BSP coupling nut x 1½" Universal