Pentek - 20" Big Blue Filter Housing - Blue Cap / Clear Sump - 1" NPT Sensafe (486900-W) eXact LEADQuick Photometer Lead & Mercury Water Tests (50) reading the dual scale markings

reading the dual scale markings through the clear acrylic body

Optimized Flow Path

Flush system for 5 minutes before drinking to remove any carbon fines and verify flow rate does not exceed 1 GPM

The oversized orifice design minimizes pressure drop and maintains consistent flow rates in low-demand applications

Pentek - 20" Big Blue Filter Housing - Blue Cap / Clear Sump - 1" NPT Sensafe (486900-W) eXact LEADQuick Photometer Lead & Mercury Water Tests (50) reading the dual scale markingsPentek Big Blue 20" Big Blue Filter Housing Blue Cap Clear Sump 1" NPT High flow polypropylene housing engineered for heavy duty sediment and large capacity filtration applications 1" NPT Ports 4. 5" Cartridge Diameter 90 PSI Max Clear Sump The Pentek 20" Big Blue housing delivers the cartridge capacity and flow rates needed for whole house, commercial, and industrial filtration without multiplying vessel counts. The 1" NPT threaded ports and clear