Fire Hose Types Explained: Attack, Supply, Forestry & Marine Complete Guide

Inside a fire station bay, crews learn to reach for the right fire hose types without hesitation: a preconnected attack line for interior work, a large-diameter supply line to keep the pumper fed, and a lightweight forestry line if the call moves into brush. Choose the wrong jacket or lining, and the result is excessive friction loss, premature wear, or a hose too heavy to advance. In practice, three variables define every fire hose type: the job it performs, the material inside the liner, and the jacket construction around it. Once you can assess those three variables, specifying the correct hose for municipal, wildland, marine, or industrial service becomes a straightforward decision.

The Five Fire Hose Families You Will Actually Specify

Most manufacturers and fire departments organize hose into functional families. Knowing which family a hose belongs to tells you more than diameter alone, because each family is engineered around a distinct operating condition.

Attack Hose

Attack hose is the working line that runs from the pumper to the nozzle, typically 1.5 to 3 inches in diameter, and it is built for high operating pressure with acceptable friction loss. The lining matters as much as the jacket: a single-jacket EPDM rubber liner attack hose offers the heat and abrasion tolerance that structural firefighting demands, while TPU-lined versions are lighter for faster deployment. Nitrile-covered attack hose is also available for crews working around oil and fuel exposure.

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Supply Hose

Supply hose, often called large-diameter hose, moves water from the hydrant to the pumper or between relay engines, with diameters commonly starting at 4 inches. Double-jacket EPDM and TPU liners are standard because the line must handle sustained pressure and dragging across pavement. A double-jacket TPU liner supply hose keeps weight down while resisting punctures, which is why it shows up frequently in municipal water supply operations.

Forestry Hose

Wildland crews need hose that can be carried into terrain where apparatus cannot go. Forestry hose is narrow, usually 1 to 1.5 inches, and built with light single-jacket construction. The single-jacket TPU liner forestry fire hose is a representative example: TPU keeps the line flexible in cold weather and resistant to vegetation abrasion without adding the weight of a second jacket.

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Marine Hose

Fire protection on ships, docks, and offshore platforms requires hose that endures saltwater, spray, and tight storage compartments. Marine hose uses PVC-covered, PU-coated, or EPDM rubber-lined constructions depending on the service. A single-jacket EPDM rubber liner marine hose is a reliable general-purpose option for vessel crews, because the rubber liner holds up to seawater exposure and repeated coupling changes.

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Mill Hose

Mill hose, sometimes called mine hose, is the industrial workhorse for mining, quarrying, and heavy manufacturing sites. These lines carry water, slurry, and debris-laden discharge, so double-jacket EPDM rubber liners dominate this category. If your site needs a line that can be dragged over rock and stepped on by equipment, the mill discharge hose family is the correct starting point.

What the Lining Material Actually Does

The liner is the layer that touches the water, and it determines how the hose behaves under pressure, heat, chemicals, and weather. Four materials cover the majority of fire hose specifications:

• EPDM rubber delivers excellent heat, ozone, and abrasion resistance, making it the default liner for municipal attack hose, mill hose, and snowmaking hose.
• TPU (thermoplastic polyurethane) is strong, light, and flexible at low temperatures, which is why it appears in forestry and supply hose where weight matters.
• PVC is cost-effective and dimensionally stable, often used in marine hose and rack hose where extreme heat is not expected.
• PU-coated and nitrile (NBR) constructions add specific properties such as oil resistance for industrial transfer hoses and covered attack hose.

The lining choice also affects storage behavior. Rubber-lined hose endures repeated service testing, while TPU hose tends to stay easier on a firefighter's back during long carries.

Comparing Lining Materials at a Glance

The table below summarizes the practical differences between the most common fire hose linings. Use it as a starting point, then confirm the manufacturer's rated working pressure and service test protocol for the specific model.

Single Jacket vs. Double Jacket Construction

Hose is woven with either one or two jackets of synthetic fiber around the liner. Single-jacket construction is lighter and easier to handle, but double-jacket construction provides higher burst resistance and better protection against physical damage. The trade-off is weight: a double-jacket supply line can weigh considerably more than a single-jacket line of the same length, which matters on the fireground and in the storage room.

1. Choose single-jacket for attack lines that are carried and advanced frequently, for forestry operations, and for any application where agility matters more than armor.
2. Choose double-jacket for supply hose, mill discharge hose, and marine service where the line is dragged over rough surfaces or subjected to repeated coupling stress.
3. Check the manufacturer's working pressure and burst pressure for both constructions; double-jacket construction does not automatically mean a higher pressure rating unless the design says so.

Coupling Standards and System Compatibility

A fire hose is only as useful as its connections. The same hose body can be finished with different couplings depending on the target market: Storz in Germany and much of Europe, John Morris in the United Kingdom, Machino in Japan, American threaded couplings in North America, and GOST in Russia, among others. When you procure hose assemblies, the coupling standard must match your pumps, hydrants, and nozzles, or you will end up with adapter after adapter. Coupling design also decides where pressure retention is won or lost, because a poor seal at the coupling-to-hose interface defeats even the best-lined hose. Understanding how fire hoses maintain their pressure during firefighting operations begins with checking that interface, not just the fabric itself.

Practical Selection Criteria for Procurement

When a tender or purchase order comes across your desk, start with the duty, not a brand name. Ask how the hose will be used, how often it will be service-tested, and what surfaces or chemicals it will touch during a normal shift. Those answers determine which of the fire hose types belongs in the specification.

• Base the pressure rating on your pump discharge and the required flow at the nozzle, not on the highest number in a catalogue.
• Confirm the service test procedure with the manufacturer, including the frequency of pressure testing and the expected useful life of the liner.
• Consider the storage environment, since hose reels, fire cabinets, and vehicle compartments expose hose to heat and ultraviolet light differently.
• Match the coupling standard and size to your existing inventory to avoid accumulating adapters and spare couplings.
• Account for total cost of ownership; a cheaper PVC-lined hose may need replacement sooner than a TPU-lined hose that cost more on the initial invoice.

Sourcing a Complete Hose System from One Manufacturer

The practical benefit of working with a manufacturer that covers the whole hose system is that specifications stay consistent from the hydrant to the nozzle. Taizhou Shenlong Fire Science and Technology Co., Ltd., based in Jiangsu Province, China, produces attack, supply, forestry, marine, and mill hoses with EPDM, TPU, PVC, PU, and nitrile liners, and its catalogue also includes the couplings, nozzles, fire hose reels, and fire cabinets that complete a firefighting installation. Its coupling range covers American, Storz, John Morris, Machino, Camlock, Barcelona, French DSP, Italian UNI, GOST, and Nakajima standards, which makes it easier for importers and engineering contractors to source a matched system instead of assembling components from different suppliers. The company's five-person research and development team includes two senior engineers with more than 20 years of experience each, providing the technical support that a plain trading company cannot offer. For departments planning a new hose inventory or replacing aging lines, reviewing the full product range is a sensible first step before committing to a single hose family.