Uni Filter lists POD-style foam air filters (“Pod Air Filters”) in their catalog (straight and dual layer) as clamp-on filters with a urethane flange.
Their “Clamp-On Pod Filters” use part codes like **UP-****, or “Dual Layer POD” (black + red foam) filters.
The Uni Filter site also shows that “Dual Layer POD” filters combine a coarse red outer foam layer and a finer inner black layer (“Two Stage”) to trap dust more effectively.
