Hybrilis 10FT R-134a HVAC Service Hose Set — OEM Replacement for Robinair, Enviro-Guard Barrier, 740 PSI

Hybrilis 10-foot 34722 hose set is a direct, heavy-duty replacement for Robinair R-134a service machines, built with low-permeation barrier material and high-pressure fittings for reliable refrigerant handling.

This hose kit replaces the Robinair 34788, 34288 and 34134Z hoses and is engineered for professional HVAC and automotive A/C service. It pairs a red high-side and blue low-side 10-foot hose, each clearly marked for R-134a use, with robust 14 mm male x 1/2" ACME female fittings. The combination of Enviro-Guard barrier material, a six-sided crimp design, and high pressure ratings makes this set suitable for daily shop use where durability and leak resistance matter.

How does this hose set reduce refrigerant loss during storage and service?

These hoses use a premium Enviro-Guard low-permeation barrier that minimizes refrigerant diffusion and helps keep charge integrity during connection, service, and storage. Reduced permeation means fewer top-ups, cleaner recovery, and a better seal at the fitting interfaces.

• Enviro-Guard barrier material to limit permeation and leakage
• Clear R-134a markings prevent wrong refrigerant connections
• Deep knurled nuts and tight crimping for leak-resistant joints

Are these hoses safe for high-pressure HVAC and automotive A/C work?

Yes. The Hybrilis hoses are rated for a 740 PSI working pressure and a 3700 PSI burst pressure, providing a large safety margin for typical R-134a charging, recovery and evacuation procedures. The heavy-duty construction resists rupture and continues to perform under repeated shop use.

• 740 PSI working pressure for routine service loads
• 3700 PSI burst pressure for robust safety margin
• Six-sided crimp design maintains connection integrity under stress

Will these fittings connect to my Robinair machine without modifications?

They are made as a direct OEM-compatible replacement for common Robinair models listed, featuring 14 mm male x 1/2" ACME female fittings for tight, leak-free connections. The fittings and clearances are designed for plug-and-play use so you can swap hoses quickly during repairs or maintenance.

• Direct replacement for Robinair 34788, 34288, 34134Z
• 14 mm male x 1/2" ACME female fittings for accurate mating
• Deep knurled nuts allow fast finger-tightening before final torque

How does construction affect daily shop handling and flexibility?

The hoses maintain good flexibility even in confined engine bays or narrow service areas, making routing and connection simpler. The rugged outer layer and reinforced core deliver longevity under frequent bending, kinking resistance, and heavy-duty cycle use.

• Flexible design for tight engine-bay routing
• Durable outer jacket resists abrasion and shop wear
• 1/4" internal diameter suited for standard R-134a flow rates

Who is this for: HVAC technicians, automotive A/C professionals, and service shops that need a reliable, OEM-compatible hose replacement for Robinair refrigerant machines. If you require heavy-duty, low-permeation hoses rated for professional R-134a charging and recovery—designed to withstand frequent use and high pressures—this Hybrilis 10FT replacement set is built to meet those demands without extensive retooling.