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DQC E-Series Straight Through Interchange Hose Barb Coupler

DQC E-Series Straight Through Interchange Hose Barb Coupler

Part Number 4ES4-B
Material Brass
Hose ID 1/2"
Maximum OD 1.34" (34.0mm)
Length 3.45" (87.6mm)
Maximum Operating Pressure 2,200 PSI (152 Bar)
Burst Pressure 8,800 PSI (607 Bar)
Temperature Range -40°F - +250°F (-40°C - +121°C)
Weight Lb 0.3600


  • Straight-Through Pressure-Wash Interchange
  • Interchanges with Parker ST, Foster FST, Hansen ST, and Tomco ST couplings
  • These couplers have no internal valves, providing maximum flow with minimum pressure drop.


  • Machined components are manufactured using solid brass
  • Nitrile (Buna-N) seals are standard

Available Options

  • Contact Dixon® for additional seal material options, pressure ratings and other technical information.

Safety notes

  • Do Not Disconnect with pressure in line.
  • Dixon cannot assume liability for misapplication of products resulting in equipment down-time, lost production, property damage and/or personal injury including death.
  • Operating pressures for the standard hose barbs utilizing hose barb end connections may be dramatically reduced to that of the hose rating and/or hose and end connection combination. Consult hose manufacturer's catalog for hose end connection ratings. If in doubt, test under controlled conditions for suitability to application.

Repair Kits
Part # Description Includes Item # Qty
4E-SKIT Nitrile Body O-ring
F-4E-SKIT FKM Body O-ring
P-4E-SKIT EPDM Body O-ring

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