Pressure Regulator 3/8" – Inline Plastic for RO & Water Filtration Systems

This 3/8" Inline Pressure Regulator is a compact and highly effective component used in reverse osmosis (RO) systems and other point-of-use water filtration setups. Designed with 3/8" inlet and outlet ports, this plastic-bodied regulator is perfect for protecting sensitive RO membranes and other downstream components from the effects of fluctuating mains pressure or sudden pressure surges (water hammer).

It helps to ensure consistent flow and system performance while extending the service life of your filtration equipment.

Key Features

• Stabilises Inlet Pressure – Reduces spikes in water pressure that can damage RO systems or cause inconsistent filtration.

• Prevents Water Hammer – Protects fittings and components from shock due to rapid shut-off or unstable municipal water supply.

• Inline Design – Easily integrates into standard 3/8" tubing setups.

• Compact & Lightweight – Discreetly fits behind or beneath sinks and filtration housings.

• Durable Plastic Housing – Corrosion-resistant and suitable for potable water applications.

Technical Specifications

• Type: Inline pressure regulator

• Inlet/Outlet Size: 3/8" OD push-fit (quick connect)

• Material: High-quality potable-grade plastic

• Pressure Regulation: 2.5 bar 

• Operating Pressure Range: Up to 8 bar max

• Operating Temperature: 5°C – 45°C

• Application Use: For RO units, water filters, and under-counter filtration systems

Applications

• Reverse Osmosis Systems – Protects membrane and fittings from excessive pressure.

• Fridge Water Filters & Ice Makers – Maintains safe operating pressure.

• Water Coolers & Beverage Machines – Ensures stable flow and consistent output.

• Aquarium Filtration – Prevents surges in delicate aquatic filtration systems.

• General Inline Domestic Water Filtration Systems

Benefits

• Extends Equipment Life – Reduces wear and damage caused by high-pressure events.

• Improves Filter Efficiency – Delivers more consistent flow to membranes and filters.

• Quick to Install – Standard 3/8” push-fit ports integrate easily with existing tubing.

• Cost-Effective Protection – A small investment that protects your larger system assets.

What’s in the Box

• 1 x 3/8” Inline Pressure Regulator (Plastic)

Important Notes

• Designed for cold water use only.

• Compatible with most standard RO systems and inline water filter setups.

• Product image is for reference only and may not reflect the exact internal configuration.