Description: Converts the 5/16" SAE service port size to accept 1/4" SAE gauge-hose set. Used on most newer R410a modern mini split ductless air conditioning systems. High precision brass body, with full swivel tip. 5/16" female sae nut with valve core depressor. 1/4" male sae tip with schrader valve core inside. Package Includes: 1 Piece Split Ductless Service Port Adapter