
"Quality Seal" Ring Panel filters are constructed of two layers of
polyester material heat sealed around an internal wire grid support. The
graduated density and tackification of media combines high dust
retention with good efficiency. The internal wire support is heavy gauge
steel to withstand high air velocity. Polyester overlap around the
support wire offers a self supporting positive seal to eliminate bypass.
"Quality Seal" Link filters are a connected series of ring panel
filters, preventing bypass between filters.