This is a A-461-3206 Universal Splicer w/ R134A Service Port PN: 461-3206Main Description As Following : A-461-3206 Universal Splicer w/ R134A Service Port P.N: 461-3206 Descriptions: Hi Side PortThread: 3/4-16 Found in Section & Models : Air Conditioning Parts > O-rings/ Fittings/ Misc, (Miscellaneous) (UNDEFINED): SEVERAL, Air Conditioning Parts > Retrofit Products, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Descriptions: Hi Side Port Thread: 3/4-16