Ball bearing wheel for Pentair ProVac and Super ProVac vacuum heads, designed for smooth operation on flexible vac models 214R, 222R, 229, and 241. Made of polyurethane with a Delrin inner race and stainless steel balls, it s a durable replacement for pool cleaning in chlorine-resistant environments.Compatible with Pentair ProVac (214R, 222R, 214, 222, 229) and Super ProVac (241) flexible vacuum heads, per Pentair specs.Measures 1-3/8" diameter with a 3/8" hole, constructed from polyurethane, Delrin, and stainless steel, per Pentair documentation.Installs onto vac head axles with an E-clip or existing hardware, requires no tools beyond axle removal, ensures smooth rolling.Keeps vacs gliding with a tough, factory-spec wheel, making your service jobs quick and client pools clean with reliable performance.