Specifically created for maximum acid and moisture removal.
12Pk Spin On Robinair Filter PK fits: rob34134a,rob342000, rob34234, rob34700, rob34800, rob34900, rob34288, rob34288ni, rob34788, rob34788ni, rob34788-h, rob34788ni-h, rob34988, rob34988ni, robac1234-4, robac1234-6.