20" Twin 2-Stage Jumbo Big Blue Whole House Water Filter Housing
20" 2-stage high efficiency in-line jumboBig Blue® water filter housing type with metal platform, pressure gauges and connection adapters.
Made using NSF and WRAS certified components.
Housing head is equipped with pressure relief valve and brass connection 1" BSP. Depending on water quality, system can be freely configurated using mechanical, carbon or specialty cartridges. Metal platform stabilizes the system. 
Includes:
HHBB20B system
2 x pressure gauges
Wrench
2 x bacteriostatic centering rings
Instructions