Radium Engineering Multi-Port Regulator (MPR) - Green

The Radium Engineering Multi-Port Regulator (MPR) is a high-flow vacuum-referenced fuel pressure regulator with an exceptionally flexible port layout, finished in green. Tested to regulate over 1,400 lph, it supports multi-pump and high-output fuel systems.

Ports A & B are -6AN ORB and port E is -8AN ORB for high-pressure fuel to/from the rail or pump, while the two lower opposing -6AN ORB return ports flow parallel for a clean return path. A 1:1 vacuum-reference design with interchangeable orifices resists diaphragm flutter for stable pressure.

Specifications

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy