*KeyFeatures *Compatible with 4 Types of Refrigerants: The AC gauge set is suitable for automotive car HVAC, household air-conditioning, and refrigerator maintenance. You can easily enjoy the DIY operation process at home. *4 PCS Reinforced Hoses: Our ultra-long 5-foot Freon hoses come in a set of four and are made of PVC with four reinforced layers. They can withstand pressures of up to 800 psi, with a burst pressure of 4000 psi. Plus, the hose interface is equipped with anti-slip sealing gaskets that prevent loosening during operation, greatly reducing the risk of leakage and waste. *Accurate and Precise Gauges: This gauge combines a dry and liquid-filled design with a dry dial to improve winter performance. The calibration screws ensure ±1.6% accuracy, and Fahrenheit temperature units make for easy reading. Plus, the sight glass design allows you to see the flowing liquid refrigerant during filling. *Sturdy Build for Endurance: This heavy-duty AC gauge set is made of solid brass, aluminum, PVC, and plastic, ensuring strength, longevity, and sealing. The tools have been designed and tested for durability. *Complete AC Gauge Set: 1 x 4-valve gauge, 2 x quick couplers, 3 x adapter (1/4sae to 1/2ACME, 1/4 to 5/16sae, 5/16 to 1/4sae), 4 x 5 ft 800～4000 psi hose, 1 x valve core wrench, 1 x screwdriver, 1 x hook, 4 x gasket, 2 x O-ring, 2 x sealing gasket, 3 x fitting, 1 x manual. A complete ac manifold gauge set makes your refrigerant recovery and filling easier! Enjoy hassle-free setup and operation as you nip your HVAC problems in the bud. ******************************************************************************************************* *Specifications Item Model Number: WZ--J401 Purpose: Fill refrigerant and test air conditioning system Type: 4-Way Manifold Gauge Set Accuracy Class: ±1.6 Measuring Range: -30~800psi (high pressure gauge) - 30~500psi (low pressure gauge) Material: Brass, Aluminum 6061-T5 Service Life: 2 Years Product Size: 12.2 x 11.8 x 3.35 inch/31 x 30 x 8.5 cm Product Weight: 6.8 lbs/3.08 kg ******************************************************************************************************* *Pakcage Content 1 x 4 Valve Gauge 2 x Quick Couplers 3 x Adapter (1/4sae to 1/2ACME, 1/4 to 5/16sae, 5/16 to 1/4sae) 4 x 5 FT 800～4000 psi Hose 1 x Valve Core Wrench 1 x Screwdriver 1 x Hook 4 x Gasket 2 x O-ring 2 x Sealing Gasket 3 x Fitting 1 x Manual