Materials: Made of high quality plastic, which is wear-resistant and strong, not easy to deform or break or rust, and can last for a long time Easy to Install：Hose adapters A allow one end to be attached to 1.25" or 1.5" hose and the other end to be screwed to the pump for a coupling fit. Wonderful Filtration：With this pool hose adapter, the water can flow from the hose into the filter and will remain clean and clear after connecting its pool side to the hose. Applicable diameters: for 38mm pool hoses and 32mm pool hoses with 2" male thread such as standard filtration systems. Extensive Applications：Hose adapters are suitable for hoses in filtration systems, submersible pumps, swimming pool pumps, filter pumps, sand filter systems or shut-off valves.