Yellow Jacket 19510 Ammonia Charging Hose 3/8" Straight Flare Both Ends, 10', Black Go to amazon.com Related posts Top ammonia hoses FeatureOperating temperature with 1/4" lies from -20 to 176F1/4" and 3/8" at - 2500 psi for minimum burst; 500 psi is for maximum working pressureCharging Hose DescriptionIt is designed with steel quick couplers at both ends.