2-Pack Water Filter Wrench Compatible with Big Blue Style Filter Housings, for 2.5x10 & 2.5x20 Inch Cartridges, Whole House Water System Maintenance Tools -Fits for 3.5? Seat Diameter (±0.08?) Filter

Additional Details from the Manufacturer

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More features

• Purchase Notes: Even with identical specifications, filter housing dimensions may vary between manufacturers. Simply measure the minimum diameter at the bottom of the filter element, approximately 3.5 inches (±0.08 inches). It is then ready for use
• Product Content: 2-Pack water filter wrench set, featuring a primary tool and an emergency spare. Designed for professional installers and property owners maintaining multiple filtration systems, ensuring you're always prepared for routine cartridge replacements
• Compatibility: The water filter wrench is compatible with 2.5x10 & 2.5x20 Inch Cartridges, Whole House Water System Maintenance Tools - for Filters with Seat Diameter of 3.5 (±0.08 Inch Tolerance) Inches (Note: 2.5" refers to the inside dimensions of the cartridge, not the housing size)
• Premium Materials: Crafted from carefully selected ABS plastic, these wrenches deliver exceptional strength, wear resistance, and durability. An anti-aging formulation ensures flexibility across varying temperatures while preventing cracks or deformation under demanding conditions, guaranteeing long-lasting performance stability
• Ergonomic Design: The precision-engineered wrench securely grips the filter housing cap without damaging threads. Measuring approximately 9.45 inches in length, its ergonomic shape ensures comfortable operation and delivers optimal torque, making filter replacement faster and safer than using makeshift tools