Interdynamics A/C Pro Professional Grade R-134a Recharge Hose & Gauge Professional grade hose & gauge allows for easier, more accurate automotive R-134a A/C recharging Extra-long 24-inch, heavy-duty braided hose Extra-large, easy-to-read dial-in gauge for accurate pressure reading Quick-Connect coupler allows for a quick & secure lock-on to service port Heavy, duty ergonomically designed rivet hinged easy squeeze trigger