Whole House 10" & 20" x 4.5" size BB filter Housing Wrench / Opener

Wrench for Big Blue housing

• Water Filter Wrench Fits 10" BB Size Housings and 20" Big Blue Filter housing .. not for use with other 10" Reverse Osmosis filter housing or 10" or 20" Slim or medium Housings.
• Filter wrench to tighten and loosen 10", 20" Big Blue filters canisters.
• Wrench maximum internal diameter to hold the housing 5.9" .