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4" Single Jacket Mill Fire Hose 125 PSI
Single Jacket Mill Fire Hose

4" Single Jacket Mill Fire Hose 125 PSI

Your Price:$289.95
Part Number:40SJM

Choose Options

Coupling Threads:
Superior Steadfast Coatings:
Quantity Pricing
  • 3 - 5
  • $284.15
  • 6+
  • $275.45
Part Number Couplings Length
40SJM Aluminum Rocker Lug
Brass Rocker Lug
Brass Pin Lug Couplings
50 ft (15.24 m)
75 ft (22.86 m)
100 ft (30.48 m)
Hose Size Water Pressure Availability
4 inch 125 PSI working, 250 PSI tested Ships directly from factory
Usually 5-10 business days

Product Details

Meant for industrial and construction locations where medium water pressure is used and available online from QRFS is Superior s 4 inch 125 PSI Single Jacket Mill Fire Hose. It has a service pressure of 125 PSI and test pressure of up to 250 PSI, is FM approved, and the staple polyester yarn yields better abrasion resistance than the imported hose. Superior Fire Hose warrants a ten year period for all hoses to be free of defects.

Superior s jackets consist of both staple and filament polyester, combined in both warp and weft direction and distributed around the circumference for excellent pressure containment. 

With great resistance to ozone, heat, and weathering, Superior s EPDM liners are extruded in their state-of-the-art facility and are specially formulated to give more than double the jacket adhesion required by the National Fire Protection Association. 


Superior s 4 inch 125 PSI Single Jacket Mill Fire Hose is available in:

  • 50 feet (15.24 meters)
  • 75 feet (22.86 meters)
  • 100 feet (30.48 meters)


  • Aluminum Rocker Lug Couplings
  • Brass Rocker Lug Couplings
  • Brass Pin Lug Couplings 

What is the difference? It s about preference. Aluminum is one-third the weight of brass and just about twice as strong. Brass is more resistant to abrasions.

Coupling Threads

Superior s 4 inch 125 PSI Single Jacket Mill Fire Hose available coupling threads options are:

  • National Standard Threads (NST/NH) 
  • International Pipe Threads (IPT/NPSH)

We do not keep fire hose in stock. All fire hose offered on QRFS.com is manufactured-to-order. The date-manufactured timestamp on the hose is as close to your order date as possible to ensure its long life. 

Not sure when it s time to replace your fire hose? Check out our blog

Fire hoses usually ship out in 7-10 days but large orders may take longer. High quantity discounts apply. Please call us with large order inquiries so we can provide a custom quote. 

Optional Steadfast Coating

The optional Steadfast Coating is environmentally safe and only enhances the hose with even more abrasion resistance and water repellency. Specially formulated with polymers and binders, Steadfast Coating won t take away from the natural flexibility of the hose. The optional Steadfast Coating is available in eight different colors:

  • Red
  • Orange
  • Blue
  • Tan 
  • Yellow
  • Green 
  • Black 
  • Brown 

All Superior Fire Hose is Factory Mutual (FM) approved.   

Looking for different fire hose? Don't worry, we've got your covered! Click here to go back to our main hose page.

Learn more about Superior Fire Hose.

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