Pentair OMNIFilter OW70 Universal Filter Housing Strap Wrench for All Water Filter Housings OMNIFilter's OW70 universal filter housing wrench. Adjustable wrench allows you to easily change cartridges on any filter housing, any brand, and any size. Features UNIVERSAL FILTER HOUSING WRENCH with adjustable strap fits ANY size filter housing FOR USE ON ALL Pentair OMNIFilter housings as well as all other brands and models EASILY REMOVES FILTER HOUSINGS for quickly changing water filter cartridges HELPS LOOSEN STUCK OR JAMMED FILTER HOUSINGS NO NEED TO KEEP MULTIPLE WRENCHES ON HAND takes the guesswork out of which wrench will work with your filter housing USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.