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Front view of Hunter HFR-100-075-40 filter with integrated 40 PSI regulator; 1" NPT inlet × 3/4" NPT outlet; 150-mesh stainless screen.

Hunter HFR-100-075-40 Filter & 40 PSI Regulator, 1" x 3/4"

Brand: Hunter
Save 28%
$56.74
$41.13
SKU HFR-100-075-40
In Stock (74)

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Hunter HFR-100-075-40 is a factory-assembled filter and pressure-regulating unit designed for drip and micro-irrigation systems. It combines a stainless-steel 150-mesh screen with a dependable regulator to deliver consistent performance and protect downstream emitters from clogging.

  • Pressure regulation: 40 PSI (2.8 bar / 280 kPa) for steady distribution.
  • Flow range: 0.5–15 GPM (2–55 L/min) suitable for most micro irrigation zones.
  • Connections: 1" NPT inlet × 3/4" NPT outlet for inline installation.
  • Filtration: 150-mesh (≈100 μm) stainless steel screen — durable and reusable.
  • Operating range: 20–120 PSI; temperature up to 120°F (≈49°C).
  • Construction: Water-tested assembly; made in USA and backed by a 2-year limited warranty.

Easy to install and service: remove the flush cap for quick screen access and clean as needed. Ideal for protecting drip tubing, micro-sprays, and low-flow emitters where stable pressure and reliable filtration are required.

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Frequently Asked Questions

What pressure does this filter regulate to?
The HFR-100-075-40 maintains 40 PSI (2.8 bar / 280 kPa) for stable system pressure.
What mesh size is used in the screen?
It uses a 150-mesh (about 100 μm) stainless steel screen that is durable and reusable.
How do I clean or service the filter?
Remove the flush cap to access the screen, rinse or brush the stainless insert, then reinstall.