Professional Solutions for Modern HVAC Service Working on a mini-split system shouldn't be a struggle. Most modern R410A systems use a 5/16" service port, but standard manifold gauges use 1/4" hoses. Our R410A Brass Adapter bridges that gap instantly.
Precision Engineering Each adapter is CNC-machined for a perfect thread fit. The internal "depressor" or thimble is precisely set to open the service valve only when the connection is secure, virtually eliminating "fluoride" or refrigerant spray.
