This genuine OEM SW-2 wrench is specifically designed for use with 4.5 inch Culligan and Ace whole house water filtration systems. It provides the necessary leverage to loosen even the most stuck filter housings, making water filter replacement quick and painless.

• Compatible with 4.5 inch Culligan and Ace whole house water filtration systems
• Provides high leverage to loosen even the most stuck filtration system housings
• Ensures quick, easy, and painless water filter replacements
• Genuine OEM product for guaranteed fit and performance