Intex Adapter B for Filter Pump & Saltwater Conversion Kit Single The Type B Hose Adapter converts INTEX pools with 1.25" fittings to 1.5" fittings These hose adapters will be needed when upgrading from a low flow pump system (1000 GPH or smaller) to a larger pump system (1500 GPH or larger) Includes one hose adapter Please note, if you are upgrading and not replacing just one, two adapters are needed for your system