Use the CUNO Aqua-Pure 68434-32C water filter housing wrench for twisting off the water filter * Do not use the AquaPure 68434-32C Wrench to tighten the water filter housing sump. Over tightening * The AquaPure 68434-32C Wrench can be used on many Aqua-Pure Standard Housings. See the Replacements * Design is stylish and innovative. Satisfaction Ensured. * Great Gift Idea.