Storz Coupling Sets

Storz Couplings are one of the most popular hose coupling when connecting lay flat hoses. The 4-lug version is a specialty coupling used in the Industrial Fire market for large scale firefighting operations. The US Coupling 12” 4 Lug (305mm) Storz couplings consist of 3 primary components: Storz head, head end shank and a segmented collar.  With a rated working pressure of 250 psi (17.2 bar), these Storz couplings provide a robust and reliable coupling when moving massive volumes of water.


  • Storz head is produced from A356.2 aluminum alloy, utilizing a permanent mold casting process with a heat treatment of T-6.
  • Hose end shanks are machined from aircraft grade aluminum extrusion alloy 6061 with a heat treatment of T-6.
  • Segmented collars are produced from A356.2 aluminum alloy casting with a T-6 heat treatment.  Segmented collars utilize (5) segments per collar assembly with each segment consisting of 2 stainless steel bolts each.

Secondary Components:

  • Storz head safety lock.  The safety lock is produced from stainless steel and is a plunger type locking device, thus eliminating the lever lock type, cutout in the Storz head.  The lock can be secured in the open position during the coupling connection process.
Inquire Now
Inquire About Storz Coupling Sets
This field is for validation purposes and should be left unchanged.

This product is currently out of stock and unavailable.

Storz Coupling Sets Specifications:
Storz DiameterShank Diameter
12" (3 Lug)12"
12" (4 Lug)12"