Product description Introduction: 1. 2-valve manifold with sight-glass & 1/4" SAE fittings anodized aluminum block body, oversized sight-glass for easy viewing the refrigerant flow high quality stainless steel gauge and high accuracy of reading 2. Ideal for R22 R134a R410A R407C 3. All hose are complied with SAE-J2196 standard standard. Specifications 1. Acceptable refrigerant: CFC HCFC and HFC 2. Temperature Scale: Celsius 3. Hose working pressure: 800PSI-4000PSI 4. Gauage: 3 inches diameter 5. Hose Length: 4FT (48 inches) Hose size: 1-Red: 1/4" Female SAE on straight end and 1/4" Female SAE on bent end 1-Blue: 1/4" Female SAE on straight end and 1/4" Female SAE on bent end 1-Yellow: 1/4" Female SAE on straight end and 1/4" Female SAE on bent end Package includes 1 × Dual Gauge Manifold with Built-in Sight Glass 3 × 4FT Refrigrant Hose (Blue Red Yellow) 2 × Adjustable Quick Fitting (Red = High Pressure, Blue = Low Pressure) 1 × Toolkit 1 × R134a can tap 1 × Anti-fog Safety glasses Note: When use R-410A function, you are ought to buy two extra adapters -1/4" Male SAE to 5/16" Female SAE, which not included in our product listing.