General description Designed for standard 1/4 INCH / 5/16 INCH SAE refrigerant charging hoses, this R134A R410 R22 HBA-B03 PSI Manifold Gauge Set is ideal for A/C refrigeration charging. It is easy to install and use, making it a great choice for both professionals and DIY enthusiasts. Technical specifications Hose length: 19 cm Type: HBA-B03 (1/4 SAE x 5/16 SAE) Material: Plastic + Metal Usage Compatible with R12, R22, and R134 refrigerants One side connects to the valve, the other side connects to the A/C system's low-pressure part Other information Package Contents: 1 Set x 1/4 SAE x 5/16 SAE HVAC Refrigerant Hoses Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product The measurement allowed error is +/- 1-3 cm