A/C Hose

Kurt Barrier Hoses

Kurt Hydraulics offers lines of standard and reduced barrier A/C hoses with couplings to match. When ordering hose, be sure to order the correct fitting series for the hose type. Kurt offers crimpable fittings for both hose type and quick-assembly KurtClip fittings for reduced barrier hose.

Standard Barrier vs Reduced Barrier Hoses and Fittings

Standard Barrier A/C Hose

Designed with a thicker inner barrier layer (typically nylon), standard barrier hose provides excellent resistance to refrigerant permeation—especially critical for systems using R-134a. It’s highly durable and well-suited for heavy-duty or high-vibration applications, but comes with a larger outside diameter (OD) and reduced flexibility, which can make routing in tight spaces more challenging.

Reduced Barrier A/C Hose

Engineered with a thinner, more advanced barrier layer, reduced barrier hose delivers comparable permeation resistance while significantly improving flexibility and reducing overall hose OD. This makes installation easier in compact routing paths and tight engine compartments, while also contributing to weight savings—ideal for modern vehicle designs.

Bottom Line:

Choose standard barrier for maximum ruggedness in demanding environments; opt for reduced barrier when space constraints, ease of installation, and weight reduction are priorities.

Kurt Hydraulics AC fittings and hoses are validated to SAE J2064.