Spanner Wrench for Big Blue /Jumbo Housing (4 Grove) SW-3E
This Sump Wrench is designed to fit and loosen 10″ & 20″ Big Blue, and Big Clear and Big White Housings. It is the perfect tool to help loosen a stuck filter housing, and makes changing the filter quick and easy.
Features:
- Makes filter change-outs quick & easy
- Perfect for loosening a stuck filter housing
- Do not use to tighten filter housing
CAUTION: You should only use the filter wrench to loosen the sump.
Over tightening can damage the o-rings and make it more difficult to open the housing later.


