Watts 20" Full Flow Water Filter Housing Black/Clear w/ PR

1-inch FPT
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20" Clear Housing for 20" x 4-1/2" cartridges

With Pressure Relief

Inlet/Outlet Options

Watts 20" Full Flow Water Filter Housing Black/Clear w/ PR

Full Flow Clear Housings for 20" x 4-1/2" cartridges are ideal substitutes for costly low pressure stainless steel vessels. Full Flow 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. Full Flow Clear Housings are compatible with a broad range of chemicals. Reinforced Styrene-Acrylonitrile housings have excellent chemical resistance and are ideal for many residential, commercial and industrial applications.

  • Straight thread design on sump
  • EPDM O-ring
  • Max Pressure: 90 psi (6.3 bar)
  • Max Temperature: 125°F

Note: Clear Housing Sumps are more prone to leaking and cracking, and are not as resilient as their opaque counterparts. They may be significantly less able to handle high pressure, temperature, exposure to sunlight, and other stress. We highly recommend considering a black, blue, white, or grey opaque housing sump, especially if your system is operating under high pressure or temperature conditions. Fresh Water Systems offers heavy duty polypropylene filter housings in a variety of sizes and colors. 

Available installation parts and accessories:

Available replacement components:

Housing Specifications
Big Blue
Pressure Relief
Mounting Bosses
Operating Conditions
90 psi
125 °F
up to 35 GPM @ 60 psi
23-2/8 "
7-1/4 "
Styrene Acrylonitrile
300 series stainless steel, EPDM, Polyproylene
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