【Adapter Converter】The pool hose adapter is used for the salt water system of an above ground pool.If you only have a 1.25" hose but want to install a 1.5" piston valve or upgrade to a stronger filter pump, the A adapter is the perfect solution.【Compatible with】A pair of A series adapters, 25007. Compatible with all 4000, 2500, 2000 and 1500 gallon per hour filter pumps that use threaded hose connectors for Intex.【Premium Material】The pool parts are made of premium plastic, sturdy and durable.The rubber ring is firmly connected to the 3.5cm hose to form a sealed space to prevent water leakage.【Easy to Install】A-hose adapters are designed to connect 1.25 inch hoses with piston valves or filter pump.The small end attaches to 1.25" hose. The threaded end attaches to 1.5 inch piston valves or filter pumps - just screw on the filter. You don't need to buy other size hoses, avoid extra cost.【Hose Connection】Converts threaded hoses to 1.5 and 1.25 inch clamp hoses and hoses for Intex pool kits. Suitable for Intex chlorine generators and salt systems that use threaded connectors. These type A adapters work closely with other pool faucets to keep your pool running safely and efficiently.