BluBird Oil-Shield: 3/8" x 50' RMA Class A Professional Rubber Air Hose: The Lightest & Strongest Oil Resistent Hose w/ 3 Year Warranty POLYESTER Imported Winner - Top 20 Tools of 2016 by Motor Magazine USA Read on why. Or better yet, just try. Grease, Diesel, Oil, Fire-sparks? Bring it on! Meets RMA Class A Oil Resistance for worry-free Professional Use. Retards fire-sparks from welding etc. much better than hybrid or plastic or even other rubber hoses. Ultra-Light & Super-Strong: Finally, a rubber hose thats 30% lighter than others and as light as hybrid / PVC hoses. And it is stronger than the best of rubber hoses. Ease of use: Lays flat, does not kink under pressure, much easier to clean than hybrid or plastic hoses.Excellent cold-weather flexibility: Remains genuinely usable at -30F. Doesn't become a noodle up till 180F either. Braided, not just spiraled, polyester gives 300PSI Working Pressure from -50F to 200F with a burst pressure of 1200PSI (Most '300PSI' hybrids have a 900PSI burst). Comes with 1/4" Brass M-NPT end fittings. Better against rust than steel, stronger than aluminium.