Features: Builted in O-rings ensuring a watertight connection, preventing leaks and maintaining efficient water flows through your pool systems. Pool Hoses is perfectly sized to fit pool set with 1.5 and 1.25inch hoses. Designs to 4000, 2500, , and 1500 GPH filter pumps that require a threaded hose connection. These adapters provide a stable fit, ensuring the proper functioning of your pool’s filtration systems. Suitable for chlorine generators/feeders and salt cell systems. Specifications: Component: Plastic Size: As Shown in the Picture Package Includes: 1set Universals Pool Hose adapters note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.