Maintenance Efficiency: By isolating sections of the pool system, the shutoff valve allows for easier cleaning or replacement of parts without interrupting the operation of the entire pool. For Intex, Bestway, and Coleman above-ground pools. Use with 1-1/2" diameter pipes and 2-1/2" threaded fittings. Pool Pump Replacement Parts Quick and Easy Installation: Designed for easy installation with above-ground pools and accessories, this pool control valve reduces the time and effort required to integrate them into your pool setup. Suitable for above-ground pools with your pool's inlet nozzle/outlet screen Note: The data are all manually measured, please allow an error of 1-3 cm. Due to differences in light and display, there may be some color differences, please refer to the actual item received. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.