Amwater NSF Stainless Steel Filter Housing for 10" Filter Cartridge, 3/4" NPT Water Filter Housing for Whole House Water Purification of Stainless Steel 304 (10" A Housing) - Amazon.com
Stainless Steel (304) Filter Housing 1" #20 Big Blue Style (4.5" x 20"): Clean Water Store
Amwater Stainless Steel Filter Housing for Filter Cartridge, Water Filter Housing for Whole House Water Purification of Stainless Steel 304 (10" C Housing-1 NPT) - Amazon.com
SS High Flow Multi Cartridge Filter Housing - Hongtek Filtration China