Over 500 PSI burst strength. Strong enough to hold the highest pressure on the hottest days. Lightweight coils and handles easily in all weather. Flow guard Plus protective collar on 5/8" and 1/2" hoses resists kinks at faucet. Heavy-duty crush resistant Full-Flo brass couplings on 1" 3/4" 5/8" with built-in washer for tight sealing. Maximum kink resistance