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AAF Flanders VariCel II Bag Filters

VariCel II is AAF Flanders' high-capacity extended-surface bag filter — a different beast from the rigid VariCel box filter. Where the rigid VariCel uses a supported pleat pack in a hard frame, VariCel II uses self-supporting fabric pockets that inflate under airflow to maximize media area in a compact footprint. The result is a high-MERV commercial bag filter with very high dust-holding capacity and very low pressure drop.

VariCel II Specifications

  • MERV 11, MERV 13, MERV 14, MERV 15 efficiency options
  • 4-pocket and 6-pocket configurations for various airflow requirements
  • Single-header and no-header frame styles — for both sliding rack and side-access housing systems
  • Standard depths of 12″ and 22″ for extended service life
  • Engineered drainage — sloped pocket bottoms shed accumulated moisture
  • UL 900 Classified
  • Tested per ASHRAE 52.2

Where VariCel II Fits

  • Commercial AHUs with side-access bag filter housings
  • Pharmaceutical pre-filtration upstream of HEPA
  • Hospital MAUs requiring MERV 13–14 baseline filtration
  • Manufacturing facilities with high-dust loading and long service intervals
  • Government and federal facilities — Section 889 compliant

VariCel II vs. VariCel (Box) — Which to Choose

Both are high-MERV commercial AAF filters, but they fit different housing types. VariCel II bag filters are for side-access housing — the bag inflates into the airflow with the filter face flush to the rack. VariCel rigid box filters are for front-load housing with full-depth (6″ or 12″) supported cells. Send us your existing filter dimensions and we'll match the right one.

Volume pricing, net terms, and COIs available for facilities and federal customers. Call 1-866-469-8556 or request a quote.