Make water filter maintenance fast, safe, and hassle-free with the Culligan SW-3A / SW-3 Filter Housing Wrench, engineered for loosening the bottom of heavy-duty filter housings during cartridge replacement. Designed to fit Culligan HD-950A and other #10 Big Blue-style housings, this rugged tool is a must-have for homeowners and professionals alike.

Key Features:

• Precision Fit for Heavy-Duty Housings
  Compatible with:

  • Culligan HD-950A
  • Pentek Big Blue housings
  • American Plumber W10-PR, W15-PR
  • Ametek Kleen-Plus HD-10-R50
  • US Filter Plymouth Products
  • Ace Hardware 49561
  • Other standard 10" x 4.5" large filter housings

• Durable Construction
  Made from high-strength plastic with a powder-coated finish, the SW-3A wrench is built to withstand repeated use without cracking or warping.

• Ergonomic Design
  The open-end spanner style and lightweight build (approx. 1.6 oz) make it easy to grip and maneuver, even in tight spaces or when dealing with stuck housings.

• Safe & Effective Use
  Specifically designed to loosen filter housing canisters. Do not use to tighten housings, as this may damage the O-ring or housing threads.

• Simplifies Filter Changes
  Helps you quickly and safely remove the housing for cartridge replacement—no more struggling with jammed or overtightened filter housings.

• Compact & Easy to Store
  With a length of just 0.5 inches and a width of 6.75 inches, it fits easily in toolboxes, drawers, or utility closets.

Specifications:

• Model: SW-3A / SW-3
• UPC: 033663005204
• Material: High-Density Plastic
• Finish: Powder Coated
• Length: 0.5 inches
• Weight: Approx. 1.6 oz
• Color: Black
• Head Style: Open-End Spanner
• Operation Mode: Manual
• Country of Origin: China
• Certifications: Genuine OEM Part

Applications:

• Whole-house water filtration systems
• Residential and light commercial plumbing
• Routine filter cartridge replacement
• Compatible with sediment, carbon, and specialty filter housings