[High Quality] The pool pump hose adapter is made of high-quality materials to make the connection more firm, not easy to leak and not easy to damage. [Perfect for Conversion] The Type B Hose Adapter coverts above ground swimming pools with 1.25inch fittings to 1.5inch fittings. Works with all for Saltwater generators and salt water systems, all for filter pumps that use threaded 1-1/2inch filter connection hoses and all pools that use 1-1/4inch clamp on style hose connections. [Upgrade Filter Pump] Needed when upgrading a 1000 pump or smaller, to a 1500 pump or larger. This pair of hose conversion adapters covert pools with 1.25-inch clamp-on fittings to 1.50-inch screw-on fittings. [Easy to Use] The Hose Adapters B are designed for connecting 1.25inch pool walls with plunger valves or other pieces of above ground pool equipment. The small end with clamp attach to 1.25inch pool walls. The threaded end attach to 1.5inch hoses, simply screw them on. [Practical and Useful] Pool drain to hose adapter can effectively improve filtration, improve water quality, and make the water flowing into the pool more clear. Material: PVC Color as shown Package Contents: 4 x Filter pump interface Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.