Wrench: Use the BW-BC wrench to loosen the filter housing.
Ametek HD20-CL Water Filter Housing Also Known As:
Ametek HD-20-CL Whole House Housing
Ametek HD20CL Whole House Housing
Ametek HD-20CL Whole House Housing
If you need to replace the entire housing, the Watts W20FFPH1CBPR clear whole house filter housing can be purchased here. The Watts W20FFPH1CBPR housing is the same size and uses the same water filters. The Watts housing has the same 1" inlet/outlets. However, the Watts housing uses a different o-ring and wrench than the Ametek housing. The Watts parts are listed on the Watts housing page.
Replacement Filters and Parts or Alternative System for the Above Unavailable Product