Mastercool 46372 A2L Nylon Barrier Hose Set 3×180cm 1/4" SAE with Auto Shut-OffProfessional nylon barrier charging hose set with automatic shut-off valve fittings. Explicitly rated for A1, A2L and A3 refrigerants including R32, R410A and R1234yf. Extended 180cm length for greater reach on commercial and VRF/VRV installations.Key Features A1, A2L & A3 Rated — suitable for R32, R1234yf, R290 and all common refrigerants Auto Shut-Off Valve Fittings — automatically retain refrigerant on disconnection; EPA/SAE/UL compliant Nylon Barrier Construction — 800 PSI (55 bar) working pressure, 4000 PSI (276 bar) burst pressure Grade 5 Hose — knurled brass nuts for easy finger tightening; 8-segment crimped dies for maximum durability 3-Piece Set — Red (high-side), Blue (low-side), Yellow (centre/service) 1/4" SAE Technical Specifications Model: 46372 Length: 3×180cm (72") Fittings: 1/4" SAE × 1/4" SAE Hose Type: Nylon Barrier (Grade 5) Working Pressure: 800 PSI (55 bar) Burst Pressure: 4000 PSI (276 bar) Valve Type: Automatic shut-off Refrigerant Compatibility: A1, A2L, A3 — R32, R410A, R1234yf, R290 and all common refrigerants Compliance: EPA, SAE, UL Country of Origin: USA Related Hose Sets 46336 — 3×90cm Nylon Barrier set with auto shut-off 46360 — 3×150cm Nylon Barrier set with auto shut-off 46396-260 — 3×280cm Nylon Barrier set with shut-off valve 47360 — 3×150cm Grade 5 standard hose set