4 housings of 20 Inch bb big blue filter with pressure release button and pressure gauge hole and plug , 1 Inch NPT. Double O Ring 20 inch Big Blue inch. 1 inch inlet and outlet ports. Pressure release valve PLUS built in PLUS PRESSURE GAUGE HOLE + Plug in case you would like to use it without gauge. Accepts 20 inch x 4.5 inch diameter cartridges. The item "20 Big Blue Whole House Water System Filter Housing With Pressure Gauge Hole 1" is in sale since Tuesday, August 9, 2016. This item is in the category "Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters".
- Power: Not Required
- Model: 105853-4
- Filtration Method: Whole House Purifier
- Type: Whole House Filter System
- Color: Blue
- MPN: 105853-4
- Brand: Max Water