1/4 in Access Valve Union Tee Connection Size 3/8 in OD x 3/8 in Slip Fit Outside Dia 3/8 in Inside Dia 3/8 in Length 2 3/4 in For Use With All CFC HCFC and HFC Refrigerants Includes 1 Threaded Cap 1 Valve Core Per Fitting and 1 Mini Core Remover Per Pack Package Quantity 2