High-Pressure RO Pump – 4.2 GPM, NAB – CAT 277

(1 customer review)


In stock (can be backordered)

SKU: CAT-277 Category:


CAT Pumps High-Pressure RO Pump Model 277

This 4.2 GPM High-Pressure RO Pump is a triplex [three plunger rods] positive displacement, reciprocating, plunger pump, constructed of Nickel Aluminum Bronze manifolds, 316 SS valve assemblies, solid ceramic plungers and standard NBR [Buna-N] seals and o-rings. The 1725 RPM permits clutch or belt drive.

Max Flow:4.2 gpm
Min Pressure:100 psi
Max Pressure:1500 psi
Inlet Port Size:0.5
Discharge Port Size:0.37
Drive Type(s):Belt, Clutch, Coupling/Bell Hsg
Material:Nickel Aluminum Bronze (NAB)



Additional information

Weight14 lbs
Dimensions12 × 9 × 9 in

CAT Pumps




Usually Ships in 1-2 Business Days

1 review for High-Pressure RO Pump – 4.2 GPM, NAB – CAT 277

  1. Maurice Williams, Majuro, MH Marshall Islands

    The pump has been installed and is working very well, I am very happy with the unit.

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