Tool, Clamp Knob Socket, 4-Lobe, w/1/4" Socket Bit Adapter $24.99 Tool, Clamp Knob Socket, 4-Lobe, w/1/4" Socket Bit AdapterCompatible with the following:Part/CategoryBrand/ManufacturerPart NameFilterSta-RiteCartridge Filter, StaRite Posi-Flo, TX & TXRTankSta-RiteDE Separation Tank, StaRitePumpHaywardHayward Max-Flo SP... Add to Cart