Pair of 2, Part #: 10722 Coverts INTEX, Bestway or Coleman pools with 1.25" fittings to 1.5" fittings Needed when upgrading a 1000 GPH INTEX pump or smaller, to a 1500 GPH INTEX pump or larger Generally two adapters are needed to connect a larger pump These are the threaded adapters, NO turn Screw style This offer is for two Adapter B (note the style has been updated). Intex conversion kit fitting. One end has threads (usually for connecting a 1 1/2 inch threaded end hose). The other end compresses onto a fitting by twisting the grey adjustment ring. Thereby squeezing down to make an air tight seal on the fitting.