Feature: The Type B Hose Adapter coverts above ground swimming pools with 1.25inch fittings to 1.5inch fittings. Works with all Saltwater generators and salt water , for all 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 Pump/Filter. 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. 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. Unique Design. Unique specially designed threaded pressure clamp for attaching to fittings through pool walls. Simple to attach to 1-1/2inch hoses with threaded collars, simply screw it on. 1.25 inch to 1.5 inch Type B Hose Pool Filter Pumps Adapters for Hose Pump Parts Connector Replacement Material: Plastic colour: As shown Package Contents: 4 x Hose Conversion Adapter 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.