The Mastercool R134a/R1234yf Complete A/C Recovery Set, No. 69372, incorporates a spark-free compressor and enhanced features to allow for maximum recovery capacity while at the same time decreasing size and weight. The set includes all hoses and couplers needed to recover, cleanse, and remove the oil from R-134a and R-1234yf automotive A/C systems, as well as an extra filter dryer for replacement. The unit easily converts between R-134a and R-1234yf with the included dual brass manifold gauge set, couplers, and conversion fittings. Each unit has a 30-lb DOT tank for R-134a and 30-lb DOT tank for R-1234yf refrigerants with a float switch that shuts off the recovery when the tank is 80 percent full.