Featuring CI’s patented permanent gasket technology.

ci-stackPerformance engineered MICRO SHIELD mini pleat filters just got better!

ZERO-BYPASS combines our Best In Class mini-pleated media with patented gasket technology originally developed by 3M.

This innovative combination creates a long-lasting, low pressure drop filtration system that virtually eliminates filter bypass with the inclusion of the ZERO-BYPASS permanent gasket system. Available in MERV 12/11A and 15/14A varieties, these exceptional filters offer unparalleled filtration performance while providing energy, time, and labor savings.


• Patented, permanent gasket system
• Positive mechanical seal eliminates air bypass
• Superior energy savings compared to other high-efficiency products
• Low initial resistance
• Lightweight
• Hassle free installation without additional filter hardware


• Commercial Buildings
• Industrial Facilities
• Pharmaceutical
• Government Institutions
• Universities/Schools
• Hotels and Entertainment Complexes

Technical Information:

• MERV 12/11A
• ΔP=.25”w.g. at 1968 cfm*
• MERV 15/14A
• ΔP=.35”w.g. at 1968 cfm
• Available in a variety of standard sizes
• Tested in accordance with ASHRAE Test Standard 52.2-2007 and 52.2-2007 appendix J
• UL Standard 900 approved
• 100% synthetic media
• Fully incinerable