This wrench is a plastic version of the Metal Wrench #2.
Replacement Parts - Filtration Systems. For Models: AP801, AP801-1.5, AP802, AP802-1.5. The Aqua Pure Heavy Duty Housing Aqua-Grip Wrench Part #68900-33P helps change water filters in all AquaPure Heavy Duty housing models such as AP801, AP801-1.5, AP802, AP802-1.5C, and other Heavy Duty Aqua Pure housings. Part 6890033, 68900-33P.