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Mastercool

83721-120 — R1234yf hose L300 blue - 12mm M

83721-120 — R1234yf hose L300 blue - 12mm M

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Mastercool 83721-120 R1234yf Hose 300cm Blue - 12mm M x 12mm M

Professional Grade 5 blue nylon barrier hose for R1234yf. 300cm (120") length with 12mm-M x 12mm-M connections. R1234yf is the new environmentally-friendly refrigerant standard (GWP less than 1) mandated for all new vehicles in Europe from 2017. Working pressure 800 PSI, burst pressure 4000 PSI. Nylon barrier prevents refrigerant permeation. Knurled brass nuts, 8-segment crimped dies. Suitable for A1, A2L, and A3 refrigerants. Meets J2888, EPA, SAE & UL standards.

Key Features:

  • Grade 5 nylon barrier hose for R1234yf
  • Blue colour (low-side identification)
  • 300cm (120") length
  • 12mm-M x 12mm-M connections
  • Working pressure: 800 PSI (55 bar)
  • Burst pressure: 4000 PSI (276 bar)
  • Nylon barrier prevents permeation
  • Knurled brass nuts
  • 8-segment crimped dies
  • Suitable for A1, A2L, A3 refrigerants
  • Meets J2888, EPA, SAE, UL standards

About R1234yf:

  • New environmental standard with GWP less than 1 (vs R-134a GWP of 1,430)
  • Mandated for all new vehicles in Europe from January 1, 2017
  • Classified as mildly flammable (A2L) refrigerant
  • Uses 12mm service fittings (different from R-134a)

Specifications:

  • Length: 300cm (120")
  • Colour: Blue (low-side)
  • Fittings: 12mm-M x 12mm-M
  • Grade: 5 (professional quality)
  • Barrier: Nylon construction
  • Working Pressure: 800 PSI (55 bar)
  • Burst Pressure: 4000 PSI (276 bar)
  • Nuts: Knurled brass
  • Crimping: 8-segment dies
  • Compliance: J2888, EPA, SAE, UL

Applications:

  • R1234yf automotive A/C service
  • Modern vehicles (post-2017)
  • Extended-reach service work
  • Low-side connections

Benefits:

Essential for servicing modern vehicles using R1234yf. Grade 5 nylon barrier construction prevents refrigerant permeation. Higher pressure rating (800 PSI working, 4000 PSI burst) provides extra safety margin. Extended 300cm (120") length provides maximum reach. Blue colour identifies low-side use. Knurled brass nuts allow easy finger tightening. 8-segment crimped dies provide secure connections. Suitable for A1, A2L, and A3 refrigerants. Meets J2888, EPA, SAE, UL standards for R1234yf service.

Grade 5 blue R1234yf hose 300cm. 12mm-M connections. 800 PSI working, 4000 PSI burst. J2888, EPA, SAE, UL compliant. For post-2017 vehicles.

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