Water filter accessories mounting brackets whole house Single housing bracket is a"U" shaped mounting bracket for 3/4 inches inlet/outlet standard whole house housings. The UB-1 mounts standard whole house water filter housings and helps support the weight of the water filter. Screws are included with the UB-1 mounting bracket for securing the water filter housing to the wall. Use with: Culligan HF-150 & Culligan HF-360 Water Filter Housings.