This Pentek SW-2 standard housing wrench is made of plastic for resistance to corrosion and is suitable for use with the Pentek AS-301E under-sink water filtration system. The wrench reduces the effort required to tighten and loosen the filter housings in this filtration system. This housing wrench is suitable for use in installing or replacing filter cartridges.

Pentair manufactures industrial, commercial, and residential water filtration components and systems under the Pentek brand. The company, founded in 1966 and headquartered in Schaffhausen, Switzerland, meets International Organization for Standardization (ISO) standards 9001 and 14001 for quality assurance.