You will need a DVA-1 when using these R-134 products:
ACP-101V
ACP-102V
ACP-102CA
ACP-105CA
ACP-307V
ACP-307CA
MRL-3V
You will need a DVA-1 when using these R-134 products:
ACP-101V
ACP-102V
ACP-102CA
ACP-105CA
ACP-307V
ACP-307CA
MRL-3V