Pentek 166201, 20″ Big Clear Filter Housing with 1″ Ports and Pressure Release (Accepts 20″ x 4.5″ Cartridges)

$123.00 - $129.00

Price Per Unit
166201$123.00 - $129.00
$123.00 - $129.00
Qty Price Ea.
2 $127.00
4 $125.00
8 + $123.00
  • 1″ FNPT Connections
  • Accepts 20″ X 4.5″ Cartridges
  • Big Clear Filter Housing
  • Pressure Rating to 90 PSI
  • NSF Certified
  • Housing Includes Cap, Sump and O-Ring Only
  • Mounting Hardware and Wrench Sold Separately


Big Clear Filter Housings offer the versatility to meet all of your large-capacity filtration needs, including high-flow and heavy-sediment applications. The extra large housing allows for greater cartridge capacity, reducing the number of vessels required for high flow-rate applications. Sumps are constructed of durable reinforced polypropylene.

Big Clear housings are compatible with a broad range of chemicals and are available with or without a pressure relief button. They accept a wide variety of 4-1/2″ diameter cartridges.


  • Large Capacity Housing Suitable for High Flow Applications
  • Standard 20″ Big Blue Cartridge Length
  • 1″ FNPT Ports
  • Blue Polypropylene Cap with Clear Styrene Acrylonitrile (SAN) Sump
  • Pressure Release Button

Pentek Big Blue Flowchart

Additional information

Housing Size

Port Size


Parts / Accessories