20"x50" Size
The PT Filtration Series is manufactured with multilayered polyester, an internal metal frame and tackifier. With high efficiency and dustholding capacity, the PT Filter makes an excellent prefilter for higher efficiency systems, or for upgrading existing systems. Designed to replace 2" standard filters such as pleated panels and fiberglass.

Average Efficiency 22% to 25%
Initial Resistance .21" W.G. @ 300 FPM
Final Resistance 1" W.G. @ 300 FPM

Link to Filter Efficiency Test Data for PT Filtration Series