Wing Nut, Rola-Chem RC252, NylonCompatible with the following:Part/CategoryBrand/ManufacturerPart NamePumpRola-ChemRola-Chem Pro Series Peristaltic Pump, RC252/25/
Screw and Nut, AquaPro AL50Compatible with the following:Part/CategoryBrand/ManufacturerPart NameSand FilterAquaPro SystemsAquaPro Systems AL50 Sand Filter System<