Coxreels P-MP-420 Medium Pressure Spring Rewind Hose Reel | P Series | 1/2″ Hose Diameter | 20′ Hose Length | 2500 Max PSI

Tight installations that move serious fluid volume need a compact reel with a fat hose — and the Coxreels P-MP-420 Medium Pressure Spring Rewind Hose Reelwas built for exactly that. Twenty feet of 1/2-inch IDone-wire braid hose meeting SAE 100R1 specifications (a steel-reinforced hydraulic hose construction built for fluid pressure, not just air) deliver the flow capacity of larger reels in a footprint that fits where space is scarce. Rated to 2,500 max PSIfor air, water, and oil service up to212°F — or 135°Fwith water and synthetic fluids — the reel handles pressure washing, oil dispensing, and light hydraulic applications that would overpower a standard low-pressure reel. The spring rewind motor pulls the heavier 1/2-inchbraided hose home automatically when the job is done, and the all-steel frame with powder-coat finish stands up to daily shop and fleet use. The P-MP-420fits mobile lube rigs running high-volume oil delivery, single-bay wash setups with short throws, under-bench mounts, and tight industrial cells where the fluid demand is high but the available real estate isn’t.

Type:Spring Rewind Hose Reel | Series:P Series (Medium Pressure) | Hose ID (in.):1/2 | Hose OD (in.):13/16 | Hose Length (ft):20 | Hose Construction:One-Wire Braid, SAE 100R1 | Max Pressure (PSI):2,500 | Max Temperature (°F):212 (135 with water or synthetic fluids) | Service:Air, Water, Oil | Retraction:Spring Rewind | Approx. Weight (lbs):47

Features:

• All-steel frame and base with durable powder-coat finish for long service in industrial, fleet, and equipment-service environments
• Pre-mounted 20-foot, 1/2-inch ID hose with one-wire steel braid construction meeting SAE 100R1 — the hydraulic-rated specification that supports 2,500 PSI working pressure
• High-flow 1/2-inch hose ID moves substantially more fluid volume than 3/8-inch medium-pressure reels, making the compact 20-foot length viable for high-throughput applications
• 2,500 max PSI rating with service compatibility for air, water, and oil up to 212°F (135°F with water or synthetic fluids)
• Multi-position adjustable guide arm directs hose payout at floor, bench, or overhead angles to match installation
• Spring motor delivers consistent rewind tension on the heavier braided hose and is rebuildable in the field for extended service life
• CNC-machined brass swivel inlet provides a leak-resistant connection rated for the full pressure of the reel
• 42 lb body mounts to wall, ceiling, bench, floor, or vehicle with standard hardware

Made in USA: 

2 Year Warranty 

Applications:

• Mobile lube & service rigs— high-volume oil dispensing where the truck-mounted setup needs flow capacity in a compact reel footprint
• Compact pressure-wash setups— short-reach wash bays and single-bay detail operations where 1/2-inch flow keeps wash output strong
• Workbench & under-bench installations— point-of-use fluid drops in shops where space is at a premium but flow rate matters
• Single-bay automotive & fleet service— oil dispensing and light hydraulic work in independent shops, small fleet operations, and dealer prep bays
• Light hydraulic & equipment service— bench hydraulic test feeds, jack and ram service, and shop pressure work within the 2,500 PSI rating

FAQs:

• Q: Why does the 1/2-inch P-MP-420 have a lower PSI rating (2,500) than the 3/8-inch P-MP-320 (3,000)?
  A: Same hose construction class, larger inner diameter. For a given SAE 100R1 hose wall thickness and braid reinforcement, increasing the inner diameter reduces the maximum working pressure — there’s more cross-section pushing outward on the braid. It’s not a defect or a downgrade; it’s physics. The P-MP-420 trades 500 PSI off the top end for substantially higher flow capacity, which is the right trade for oil dispensing, wash bays, and any work where volume matters more than the last few hundred PSI of pressure.
• Q: When should I pick the 1/2-inch P-MP-420 over the 3/8-inch P-MP-320?
  A: Choose the 1/2-inch reel when flow rate is the priority — high-volume oil dispensing, pressure-wash output, or any application where 3/8-inch hose creates a noticeable bottleneck. Choose the 3/8-inch reel when working pressure between 2,500 and 3,000 PSI is required, or when the lighter hose is easier to handle in your installation.
• Q: Why no EZ-Coil version of the P-MP-420?
  A: Coxreels offers EZ-Coil controlled retraction on selected models, primarily where hose length and weight create meaningful rebound energy. The 20-foot MP-420 has less stored spring energy at full extension than longer MP reels, so the controlled retraction option isn’t offered on this SKU. If you need EZ-Coil specifically, step up to the EZ-P-MP-425 (25 ft, 1/2″ ID) or EZ-P-MP-430 (30 ft, 1/2″ ID) — both share the same 1/2-inch hose ID as the P-MP-420.
• Q: What does “SAE 100R1” mean, and why does it matter?
  A: SAE 100R1 is the Society of Automotive Engineers specification for hydraulic hose with a single layer of steel wire braid reinforcement. It defines the construction, pressure rating, and minimum burst pressure of the hose. R1 hose is the standard medium-pressure hydraulic hose used across the industry — so the P-MP-420 isn’t just rated for higher pressure on paper, it’s built with the hose construction that actually delivers it.
• Q: Can I use this reel for gasoline, diesel, or hydraulic fluid?
  A: The P-MP-420 is rated by Coxreels for air, water, and oil service. SAE 100R1 hose is widely used in hydraulic applications, but compatibility with fuels or specific hydraulic fluids depends on the seals, the hose inner liner, and the fluid itself. For fuel delivery, use a dedicated fuel reel with Viton or fuel-rated seals. For hydraulic fluid, confirm compatibility with Coxreels or your fluid supplier before putting the reel into service.

Available Variations and Specifications