• 2-1/2INsilicone dampened gauges can be recalibrated • Extra access port for vacuum line • R1234yf high and low side quick couplers • R134a high and low side economy couplers • 1/2” (M) x 1/2IN (F) LH thread adapter • (2) 12mm (M) x 14mm (F) R1234yf adapters • (3) R134a standard hoses