Our “Delta Pleat,” has been manufactured
in-house since 1994 in two styles:
• Our H-style has more pleats per foot and has welded wire-
backing support. This makes a much stronger filter that has longer
• Our S-style filter is for standard applications where cost
is an important factor.
Our filters are inspected and listed by Underwriters Lab (UL) for
fire rating. In our manufacturing, we laminate the wire backing
to the media and pleat on either our push-bar pleater for the V-pleat
or our rotary pleater that makes our radial design H-pleat. We have
three assembly stations that allow us to turn large orders around
in one to two days. In-house manufacturing allows us to do special
types of filters in large quantities.