The Wix 51060 (or NAPA 1060) should have an anti-drainback valve. The similar Wix 51061 (NAPA 1061) is the same filter but without the anti-drainback valve.
Wix products are no longer assured to be made in USA. Some are...some are very much not. Gotta look at each individual filter, 'cause COO is not printed on the box.
Wix products are no longer assured to be made in USA. Some are...some are very much not. Gotta look at each individual filter, 'cause COO is not printed on the box.