This kit allows the user to service valve cores without loosing systems charge. Mastercool's unique design offers a locking device that holds the shaft in place while removing or installing the valve core.

Includes:
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 and high side remover /installer assembly
Adapter 1/4"(M)x3/16"(F) high side GM/Ford
Adapter 1/4"(M)x1/8"(F) high side GM/Ford
Plastic molded box.