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Enhanced Flow and Visibility
on the Fireground

Large Diameter Polyurethane Supply Hose

Kryptonite™ LDH is the ultimate fighter, delivering maximum flow and high-test durability in a high-visibility, lightweight supply line. Engineered with a rugged polyurethane thru-the-weave construction, this high-performance hose delivers superior abrasion and puncture resistance while remaining extremely light and durable, making Kryptonite the optimum choice for a service worthy supply line.


  • Lightweight. Kryptonite weighs 20% less than conventional rubber supply hose.
  • Tough. Rugged polyester jacket is reinforced with an advanced urethane polymer for increased puncture resistance that is five-times that of rubber hose.
  • Dependable. Extruded thru-the-weave polyurethane construction and ultra-smooth liner significantly minimizes friction loss and delivers greater flow.
  • Efficient. Unlike bulky rubber hose, Kryptonite’s light, compact hose profile makes it easy to move and takes up less space in the hose bed.
  • Flexible. Remains flexible to -50°F(-46°C).
  • Ultra-Durable. Kryptonite resists ozone, oxidation and most chemical/petroleum products; will not mold or rot; is kink resistant and snag-proof; and is guaranteed for life against delamination.
  • Certified. Manufactured in accordance with NFPA 1961 Standard, latest edition. Made in USA to ISO-9001 certified quality management system.

Hose Sizing and Specifications

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Size Service Test Proof Test Burst Weight
(For 100' Coupled)
Flat Width Bowl Size
IN PSI (kPa) PSI (kPa) PSI (kPa) LBS (KG) IN IN
4" 200 (1380) 400 (2760) 600 (4140) 72 (32.7) 6 1/4" 4 5/16"
5" 200 (1380) 400 (2760) 600 (4140) 97 (44) 7 3/4" 5 5/16"
As per NFPA 1961 – The service test pressure is to be 10% greater than the “normal highest operating pressure” at which the hose is expected to be used.

How to Order

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Type Hose ID by Hose Length Color Coupling Size Thread Type Coupling Material
UTX 40 = 4"


50 = 5"
X 50 = 50'


100 = 100'
G = Hi-Viz Green


O = Blaze Orange
40 = 4"


50 = 5"
N = NH




S = Storz
Part No. Example:
UTX 50 X 100 G 50 S  
UTX50X100G50S = Kryptonite Hose, 5" ID by 100' Length, Hi-Viz Green, 5" Storz Aluminum Coupling


Extruded Thru-the-Weave Polyurethane

Temperature Range

-50° to 160°F (-46° to 71°C)


Aluminum NH/NST or IPT Threaded & Aluminum Storz


Hi-Viz Green   Blaze Orange