This is a A-220-1021 High Pressure Switch w/ HNBR O-Ring PN: 220-1021Main Description As Following : A-220-1021 High Pressure Switch w/ HNBR O-Ring P.N: 220-1021 A-220-1021 High Pressure Switch w/ HNBR O-Ring P.N: 220-1021 Found in Section & Models : Air Conditioning Parts > Retrofit Products, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada