The Mastercool 53134 Refillable Dye Injector (R134A Auto A/C System) with the R134a 13mm connection and 2 ounce bottle of concentrated A/C dye, enough for up to 25 applications. To inject the oil or dye, simply connect the injector to the low side of the A/C system and twist the handle until you reach the desired amount. The injector hose comes complete with a R134a coupler and auto shut-off valve adapter for 1/4"FL systems. REFILLABLE DYE INJECTOR with (R134a 13 mm Connection) and 2 oz Bottle of Concentrated A/C Dye (25 Applications).

Warning: This product may expose you to chemicals including lead which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov