Biltek NEW Professional A/C Air Conditioner Refrigerant Manifold Gauge Kit Set R134a HVAC Manifold Gauges A/C Tester Refrigerant Gas Service Diagnostic Kit Complete Diagnostic and Service Gauge Set for use on Air Conditioning Systems (Automotive / Home) Refrigerant Charging Hose 2500PSI Burst 500PSI Max W.P. each hose is aprox 3ft ( 36 inches) with 1/4" SAE fitting Brand: Biltek | 10 Amps High Rate Charging Connect fittings with high pressure safety valve