This kit contains the most common GM screw cap reservoir adapters.
These are low pressure adapters designed for 15-17 psi. This Kit will also fit other applications like Nissan.
3 most common screw cap adapters
#3 for GM and Nissan
# 10 for Nissan and some GM
Adapter sold separately to connect to pressure bleeder
Easy screw on adapters
Provides good seal for master cylinders
Numbered for easy identification