Features: This wrenches slip onto this filter housing to aid in the replacement of filter cartridges, easy for using. for all standard 10inch water filter housings. for strong membranes cup design to prevent cracking. Produced of premium Plastic material, strong & long for time service. Tighten specific law on the first hand clockwise filter bottle, so a half turn with a wrenches to normal tightness filter Bottle and filter cover should have 1-2 mm Cover .
note: Please allow 1-3cm error due to manual measurement. make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.