Brand New Culligan HD-950A Heavy-Duty Whole House Water Filter Housing – 1" Inlet/Outlet Heavy-Duty Whole House Water Filter Housing: Provides clean, fresh water throughout your home by reducing sediment, dirt, sand, and silt from the incoming water supply; filter cartridge sold separately. Easy Installation: Features 1" inlet/outlet connections and a built-in pressure relief button; includes housing wrench; four times the capacity of standard duty filters. Protects Appliances & Plumbing: Ideal for residential homes, this point-of-entry filter housing helps to protect your pipes and water-using appliances from sediment build-up. Durable UV-Resistant Housing: Constructed from opaque polypropylene, designed for outdoor installations where sunlight exposure is a concern. Compatible with Multiple Cartridges: Works with Culligan filter cartridges: R50-BBSA, CW25-BBS, CP5-BBS, CW5-BBS, RFC-BBSA