1. ABOUT PRODUCT: This water filter wrench has long-lasting polymers for sturdiness and corrosion protection with Heavy strength, and a reusable housing wrench for twisting off water filter housing cylinders.<br> 2. FEATURES: This housing wrench is used to secure the water filter canister, preventing leaks, which may occur due to O-ring damage, and even the most stuck or jammed filtration system, which is easy to loosen or tighten with the help of the wrench.<br> 3. UNIVERSAL SPANNER & WRENCH: It is compatible with most water filter housings that accept 4.5-inch width filter cartridges (Wide Body) This wrench is compatible with many model water filters that require a "wide body" water filter cartridge. The actual inside diameter dimension of the wrench is 6 1/8" wide. and is suitable for all types of under-sink and RO systems. Use the Plastic Spanner Wrench, which has four teeth for a firm grip, to make the spun filter replacement easier.<br> 4. EASY TO USE: The water filter wrench facilitates the replacement of water filter canisters. It is important to use caution and not apply too much power to the tool. Lubricate the threads that connect the sump to the filter housing top so it's easier to remove when it's time to change the filter. To avoid damaging system components, it is essential to use the proper wrench.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.