Mastercool 58490-YF R1234YF Universal Master Valve Core Kit
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- The perfect tool for replacing damaged valve cores with R1234yf refrigerant in the system without losing the systems charge.
- Attaches to R1234yf service ports to quickly and easily remove and replace valve cores without the loss of refrigerant
- Ball Valve design with stainless steel ball provides smooth movement and durability
- Kit covers 17 mm and 14 mm high and low side service ports
- INCLUDES: Valve assembly High side 17 mm connector Low side 14 mm connector Standard valve core shaft GM large bore valve core shaft Eaton R134a/R1234yf high side valve core shaft