Made from ABS, the top mount multiport valve has 1.5 inch (38 mm) fitting connectors, and will work smoothly with your pool sand filter. Our pool filter valve features an easy-to-use lever action handle, which allows you to choose among 4 valve/filter functions: winter, rinse, filter and backwash. Equipped with an integral pressure gauge, you can easily monitor the pressure during the operation. Combined with pool filter, this multiport valve will keep the water in your swimming pool clean and sparkling. Delivery with O-ring and pressure gauge. Please note fitting is not included in the delivery.