Robinair (13169 Maintenance Kit Genuine Robinair products designed to keep your early model Robinair recovery and recycling equipment operating at peak efficiency Kit includes 1 ea. No. 34430 quick-change filter-drier for use on both R-12 and R-134a stations and 1 ea. No. 13119 16 ounce (1 pint) bottle of Robinair premium high vacuum pump oil For models that use a No. 34430 filter-drier - AC375A, AC374C, AC374, 34134Z, 34134-2K, 17700A, 34700, 34300-2K, 34134Z, 34134-2K Refer to your instruction manual if you have questions about which filter-drier to use