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
RPM: 1725
Drive Type(s): Belt, Clutch, Coupling/Bell Hsg
Material: Nickel Aluminum Bronze (NAB)



Additional information

Weight 14 lbs
Dimensions 12 × 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.

Only logged in customers who have purchased this product may leave a review.