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3M Cuno 40 Gal. Hydropneumatic RO Storage Tank

CUNO Tank Kit

Retail: $908.99 /ea
You Save: 15%
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Retail: $908.99
You Save: 15%
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The 3M Cuno 40 Gal. Hydropneumatic RO Storage Tank - 5591203 is made of traditional fiberglass, also known as fiber-reinforced plastic (FRP). This hydropneumatic water tank features a 1 1/4 inch ball valve assembly. This fiberglass water tank measures 55 inches high and 24 inches deep, and weighs 87 pounds. This Cuno fiberglass tank is also known as 3M part number 5591203.


  • Brand: 3M Cuno
  • Model Number: CUNO Tank Kit
  • Part Number: 5591203
  • Dimensions: 55 inches H x 24 inches D
  • Weight: 87 pounds
  • Reverse osmosis tank

Fits In These Systems:

The 3M CUNO Tank Kit is a reverse osmosis tank for use with the following water filtration systems:

  • 3M Cuno CFSRO300
  • 3M Cuno CFSRO600
  • 3M Cuno CFSRO900
  • 3M Cuno CFSRO1200

Compatible Models:

The 3M Cuno 40 Gal. Hydropneumatic RO Storage Tank is correct replacement for the following model numbers:

BrandModel NumberDescription
3M CUNO3M Cuno CFSRO1200Reverse Osmosis
3M CUNO3M Cuno CFSRO300Reverse Osmosis
3M CUNO3M Cuno CFSRO600Reverse Osmosis
3M CUNO3M Cuno CFSRO900Reverse Osmosis
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