The McAlpine STW19-TUBE is a dip tube designed for use with McAlpine STW 1½" shower traps. It is made from white plastic and is designed to be inserted into the trap body to create a dip in the water level, which helps to maintain the water seal and prevent foul odors and gases from entering the bathroom. The dip tube is easy to install and can be easily removed for cleaning and maintenance. It is a cost-effective solution for preventing unpleasant odors and gases from entering the bathroom, and is particularly useful in situations where the trap may not be used regularly, such as in guest bathrooms or vacation homes. Overall, the McAlpine STW19-TUBE is a simple but effective accessory for McAlpine STW 1½" shower traps, providing an additional layer of protection against unpleasant odors and gases. ・ Available for 19mm, 50mm and 80mm Shower Traps ・ Suitable of use with STW range of 1½" Shower Traps ・ Full range of spare parts and accessories are available on The Plumbers Mate