For Intex 1500, 2500, and 4000 GPH saltwater chlorinators, Intex saltwater chlorinators, and Intex 2000 GPH chlorinator pumps. 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 hoses and 2-1/2" threaded fittings. 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 it into your pool setup. Suitable for above-ground pools with your pool's inlet nozzle or 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.