This filter housing accommodates most 4.5" x 20" filter cartridges and features newer, three-piece design. Over time pressure will build inside normal two-piece housings making them difficult to unscrew and replace filters. The three-piece design circumvents that issue. Bracket and wrench are included. 1" FPT ports.

• Heavy-duty three-piece design filter housing for 4 1/2″ x 20″ nominal cartridges
• Much better than the typical "Big Blue" filter housing-super easy to tighten and loosen
• This kit includes the housing, bracket and wrench; does not include 20" filter
• NSF 42 Certified. Authentic VIQUA Product; manufactured from food-grade materials