Skip to Main Content

Giant Pumps 21905F Pressure-Actuated Regulator, 2 Inlets - 10 GPM, 2000 PSI, 3/8 Inch FNPT x 3/8 Inch FNPT

Mfr. Model #:
KR Part #:
0.85 lbs
In Stock
Now Only!
This is a pressure-actuated regulator that is designed for any pump that fits within the flow and pressure range of the regulator. Has a flow rate of 10 GPM and a pressure range of 50 - 150 PSI. Features (2) 3/8 Inch FNPT Inlets.

Note: Requires a partial bypass to operate.

Technical Specifications

Max PSI: 2000
Min PSI: 150
Max GPM: 10
Inlet Port: 3/8 inch
Outlet Port: 3/8 inch
Max Temperature: 160 degrees F

Product Description

2000 PSI 2 Inlet Regulator

The Giant Pumps 21905 is a pressure-actuated regulator designed for compatibility with any pump that fits within its flow rate and pressure range. Used to maintains system pressure. Features an adjustable knob that controls the amount of tension on a pressure spring. It also determines the direction of the flow in the system. When the flow stops, it is diverted through the outlet port and all flow is diverted to the bypass port at virtually no pressure. Requires a partial bypass to operate.


  • Inlet: (2) 3/8" FNPT
  • Outlet: 3/8" FNPT
  • Flow: 10 GPM
  • Pressure Range: 150-2000 PSI
  • Max Temperature: 160° F
  • Material: Brass body, stainless steel wet end metal parts
  • Made in USA
  • Weight: 0.85 lbs.

Product Reviews

Frequently Asked Questions