The Radium Engineering Multi-Port Regulator (MPR) is a versatile, high-performance solution designed for both simple and complex fuel systems. Whether you're combining dual pumps into a single feed, splitting a feed line between dual fuel rails, or supporting a single pump setup, the MPR delivers unmatched flexibility with compact packaging and precise pressure control. Key Features: Supports multiple plumbing configurations: flow-through, deadhead, or hybrid Tool-less fuel pressure adjustment with haptic detents (1 psi per click) Laminar flow return orifice for outstanding pressure stability Rotating 360° vacuum reference port with 4 interchangeable fittings Integrated dual return ports aligned with pressure ports – no elbows needed Universal mounting with included bracket or M6 through-body holes Compatible with gasoline, ethanol (E85), methanol, and oxygenated fuels Fuel Pressure Range: Minimum: 18.5 psi (1.3 bar) Maximum: Dependent on fuel pump system (not internally limited) Vacuum Reference Options (Included): Barbed fitting – 3/16" (compatible with 5/32", 3/16", and 7/32" hose) 3AN male fitting Push-to-connect fitting – 1/4" hard plastic tube Vacuum plug – for returnless or constant-pressure setups Included Components: Main regulator assembly (black or green) Mounting bracket with stainless hardware 4 vacuum reference fittings (2) 6AN ORB plugs (1) 8AN ORB plug (3) 6AN ORB to 6AN male adapters (1) 8AN ORB to 8AN male adapter Designed for maximum adaptability and race-ready performance, the Radium MPR is ideal for both modern returnless fuel systems and traditional return-style setups. Its compact design, industry-first rotating vacuum port, and ultra-stable pressure control make it a premium choice for tuners and engine builders alike.
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