Baldwin listed the filter as B7240 Napa cross that to a L1311 - the specs are slightly different between baldwin and napa - make sure you take your old one with you to match up. The threads show as 3/4" - 16 which is quite common. If you look closely there should be a bypass valve - it is listed with a common setting. If the 3430 is on warranty you should use the OEM's as they will war with you if there is a warranty claim with the filter on.
Garth