Superb Wrench SPBW-1 Heavy Duty Metal Water Filter Housing Wrench (4.8 inch Inside Diameter) Replaces standard plastic SW-2 wrench. 4.8 inch Inside Diameter Fits Pentek #150295, American Plumber 152037, American Plumber ww34, Culligan HF-150, HF-160, HF-360, HF-365, Culligan #150295-27, Culligan #01019185, US Water Standard 2.5 X 10 & 20, Ametek, Axeon, Dupont WFPF38001C, Everpure 150259 and Omni OB1 series A. Handle is rubberized and longer than a standard filter wrench which gives you extra leverage Handle is also imprinted with a directional arrow to ensure proper removal of the housing unit Made in the USA