The McAlpine STW3-R 19mm Water Seal Shower Trap with Universal Outlet is a plumbing component used to connect the waste pipe from a shower to the drainage system. The STW3-R trap is designed to be installed below the shower tray and is commonly used in residential and commercial plumbing installations. The STW3-R shower trap features a 19mm water seal, which helps to prevent foul odours and gases from escaping from the drainage system and entering the living space. The water seal also helps to prevent blockages by trapping debris and preventing it from entering the drainage system. The universal outlet allows for easy connection to a range of waste pipe sizes and types, making it a versatile choice for a variety of plumbing applications. The trap also features a removable grid, which allows for easy cleaning and maintenance. The STW3-R trap is different from the STW1-R trap in that it has a deeper seal, which can help to prevent blockages and improve the flow of water. This is particularly useful in situations where there is a higher risk of blockages due to a large volume of water being used. Overall, the McAlpine STW3-R 19mm Water Seal Shower Trap with Universal Outlet is a reliable and easy-to-use plumbing component that is suitable for use in a range of different plumbing installations. It is particularly useful in situations where a deeper water seal is required to prevent blockages and improve water flow. ・ Flanges available in White or Chrome Plated Plastic, or Chrome Plated Brass ・ Suitable for shower trays with a 50mm waste hole ・ 19mm Water Seal ・ 1½" BSP Thread ・ 1½" Universal Outlet