The Cam-Flo XLT bag filter combines the strength of a multi-layered, polypropylenepolyester media with a reinforced, rigid ABS frame to create a robust air filter that is strong enough for even the most extreme conditions. It has been tested in laboratory conditions to a static pressure exceeding 33.0w.g. It is ideal for turbulent or high pressure applications where normal HVAC filters would fail. The Cam-Flo XLT offers: - Superior mechanical strength providing the most robust HVAC air filter available.- May be operated to 2500 cfm (full size) without sacrificing performance.- Is capable of withstanding unusual variations in airflow or system turbulence.- May be used in applications of high moisture content that may be hostile to air filters of standard construction, up to 100% RH.