Mastercool 58490 – Universal R12/R134a Master Kit

Mastercool’s valve core remover/installer has a built-in ball valve to retain charge and allow access to A/C system. Excellent for replacing valve cores without discharging the system, speeding recovery and recharging large systems. Its heavy-duty design for R134a and R12 systems allows the user to change valve cores while under pressure without any refrigerant loss. Patent # 6253436.

This kit consists of valve assembly, R134a high side 16mm connector, R134a low side 13mm connector, 1⁄4″ FL swivel connector, standard valve core remover/installer assembly, GM large bore valve core remover/installer assembly, JRA R134a valve core remover/installer assembly, Eaton R134a low side valve core remover/installer assembly, Eaton R134a high side valve core remover/installer assembly, adapter 1/4″-M x 3/16″-F high side GM/Ford, adapter 1/4″-M x 1/8″-F high side Ford.