Pentek - SW-3 Wrench for #10 Big Blue Housings
SW-3 Spanner Wrench for #10 Big Blue Housings
Heavy-duty plastic wrench designed to loosen Pentek #10 Big Blue filter housing sumps without cracking or stripping
Built for leverage and grip on large diameter housings
Proper Fit
Molded specifically for Pentek #10 Big Blue housing sumps, ensuring secure contact without slippage or damage to the sump threads
Strong Plastic
Reinforced construction provides the torque needed to break seals on pressurized housings without cracking under force
Housing Protection
Plastic construction won't scratch or mar the exterior finish of your filter housing like metal wrenches can
Maintenance Essential
Makes routine filter changes faster and easier, especially after months of pressure have sealed the O-ring to the housing
Fits all Pentek #10 Big Blue housings
The SW-3 wrench is engineered for Pentek #10 Big Blue filter housings used across residential, commercial, and industrial applications. Compatible with standard 10-inch Big Blue sumps from the Pentek product line, including housings used for sediment filtration, carbon filtration, drinking water systems, irrigation pre-filtration, and industrial process water treatment. This is the correct wrench for any Pentek Big Blue housing with a #10 sump diameter.
When to use this wrench
Sump Removal
Use the SW-3 wrench each time you replace your filter cartridge to safely loosen the housing sump without over-torquing or damaging threads
Housing Cleaning
Remove the sump to clean sediment buildup from the bottom of the housing and inspect the O-ring for wear or damage
O-Ring Replacement
When replacing a worn or damaged O-ring, the wrench provides controlled leverage to avoid cross-threading during reassembly
No More Stuck Housings
Proper leverage prevents the frustration of housings sealed tight by pressure and time
Faster Service
Reduces filter change time and makes routine maintenance less of a chore
Professional Grade
The same tool used by water treatment professionals and installers in the field
