Good Filterability: The replacement pool hose adapter can connect one side of the pool to the hose, allowing water to flow from the hose to the filter, keeping the water clean and clear for a pleasant swimming environment. High-quality Material: The replacement pool hose adapter is made of selected ABS material, which is wearable, strong, water-resistant, anti-corrosion, durable, and is not easy to deform or break. Type B Application: Type B Hose Adapters convert pools from 1.25in fittings to 1.5in fittings. These replacement pool hose adapters will be needed when upgrading from a low-flow pump system (1000 GPH or less) to a larger pump system (1500 GPH or greater). Wide Applications: These replacement pool hose adapters can be attached to a hose as a small filter and are widely used in swimming pools, bathrooms, water bags, and other places where water can be stored. Wide Compatibility: Our replacement pool hose adapter fits all 4000, 2500, 2000, and 1500 gallon per hour filter pumps that use threaded hose connections, and the 1.5 and 1.25-inch hoses for pool sets.