General description R410 Adapter Kit is designed for use with most newer R410A ductless mini split systems. This adapter is perfect for R410a mini split system air conditioners, HVAC, and refrigeration service. It effectively converts 5/16 inch SAE charging-vacuum ports to accept 1/4 inch SAE gauge-hose sets. Technical specifications Interface size: 1/4SAE to 5/16SAE Material: Heavy duty brass Color: Gold Measurement allowed error: +/- 1-3cm Installation Features a 45-degree angle on the service port site for easier access. Coupler nuts are deeply knurled for quick finger-tightening. Usage Converts 5/16 inch SAE charging-vacuum ports to accept 1/4 inch SAE gauge-hose sets. Other information Package Contents: 1 * R410 Adapter Kit Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. The product may be updated constantly; actual product may have slight differences in color or appearance.