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Hunter PMR-25-MF-4F4FV pressure regulator, molded thermoplastic body with 1-inch female threaded inlet and outlet, front view.

Hunter PMR-25-MF-4F4FV — 25 PSI Medium-Flow Pressure Regulator

Brand: Hunter
Save 44%
$25.78
$14.50
SKU PMR-25-MF-4F4FV
In Stock (38)

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The PMR-25-MF-4F4FV is a preset, medium-flow Pressure-Master regulator engineered for consistent irrigation output at 25 PSI. Designed for mid-range systems, it stabilizes downstream pressure so emitters, drip lines, and sprinklers deliver uniform coverage even when inlet pressure varies.

  • Preset 25 PSI outlet: Maintains a steady 25 PSI output to protect downstream emitters and preserve uniform application.
  • Medium-flow performance: Engineered for 2–20 gpm (454–4543 L/hr), ideal for drip systems, solid-set zones, and low-volume irrigation.
  • 1" female thread model: This SKU is supplied with 1" F NPT connections for straightforward inline installation.
  • Durable construction: High-impact engineering-grade thermoplastic body with stainless-steel spring; 100% water-tested for accuracy.
  • Reliable operation: Very low hysteresis and friction loss; can be installed aboveground or buried as required by the system layout.

Compact and serviceable, the PMR-25-MF model integrates easily into irrigation manifolds and retrofit assemblies. Follow the flow-direction arrow and install downstream of shutoff and filtration devices. For system-specific guidance and warranty details, consult the manufacturer documentation or your technical representative.

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Frequently Asked Questions

What outlet pressure does this PMR model provide?
This PMR-25-MF model is preset to deliver 25 PSI outlet pressure for steady irrigation performance.
What flow range and maximum inlet pressure apply?
Designed for 2–20 gpm operation; maximum inlet pressure for the 25 PSI model is 105 PSI.
What thread sizes and installation options are available?
Available with 3/4" and 1" NPT or 1" BSPT thread options; it can be installed aboveground or buried, observe flow direction.