extended surface bag filters are designed for use
in most commercial or industrial HVAC systems
where medium to high efficiency filtration is
required. Precision Pak XDH filters are available
in micro-fine polyolefin synthetic media with
average efficiency ranges of 75%, 85% and 95%
per ASHRAE Standard 52.1 test methods.
Operating face velocities up to 625 fpm are
available for all models. Precision Pak XDH filters
in depths of 12 in. and 22 in. are suited for
variable air volume systems. Filters with greater
depth are not recommended. Precision Pak XDH
filters are UL 900 Class 2 listed.
