R134a Tee Adapters, High Side, 10mm Switch Port, Fits 3/16" Flare

Tee adapters should be used when there is only one high side or one low side service port on the vehicle and a switch port and service port are both needed for the R134a retrofitted system
Tee Adapters can be used when there is an existing high side or low side switch on the original R12 system or if it is necessary to install a high pressure shutoff switch on the system
High Side R134a Service Port w/ 10mm Switch Port
Fits 3/16" Flare (3/8" SAE) R12 Service Port