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Ducted Filter Modules

Ducted Filter Modules

HEPA/ULPA WhisperFlow Modules include 12"-dia. flange
for ducting to remote air handler


Optional Challenge Port
simplifies leak testing
  • Low-profile design allows installation inside cleanrooms with standard 2’ x 4’ ceiling grids
  • Both HEPA or ULPA filter options available
  • 12" x 2"H collar included for attachment to air source
  • WhisperFlow™ fan/filter unit provides uniform face velocity
  • Room-Side Replaceable models allow easy filter replacement without breaching the ceiling
  • Provides years of no-maintenance, 24/7 operation depending on your air quality

Ducted Filter Modules provide HEPA or ULPA filtered air when connected to an air handler or other air source (required). They include a 12" x 2"H collar for attachment to the air source, which determines flow rate. An internal baffling system and diffuser plate ensure uniform face velocity.

Filters are mounted within the white powder-coated steel housing. Room-Side Replaceable models allow faster, cleaner filter replacement. A remote damper adjustment option is also available.

HEPA filters are rated 99.99% efficient at removing particles ≥ 0.3 microns; ULPA filters are rated 99.999% efficient at removing particles ≥ 0.12 microns.

A number of adjustable damper options are available; call to discuss your requirements.

All-Stainless Steel HEPA/ULPA Filters for Clean Operation and Enhanced Chemical Compatibility
All models below include a 304 stainless steel fan housing with HEPA or ULPA filter mounted in an anodized aluminum frame and an anodized aluminum filter face grille.
  For clean and sterile operations, an all-stainless steel filter is available, which includes 304 SS filter frame and face grille that stand up to alcohol and other cleaning agents. Ask your Terra sales representative for a quotation with current lead time on all-stainless steel models.
Ducted Filter Modules—Powder-Coated Steel
Nominal
W x D
Standard Model Room-Side Replaceable
With HEPA Filter With ULPA Filter With HEPA Filter With ULPA Filter
Cat. # Price Cat. # Price Cat. # Price Cat. # Price
2' x 4' 6601-24-HD $ 332 6601-24-UD $ 477 6601-24-HDR $ 648 6601-24-UDR $ 743
2' x 3' 6601-23-HD $ 349 6601-23-UD $ 454 6601-23-HDR $ 648 6601-23-UDR $ 743
2' x 2' 6601-22-HD $ 369 6601-22-UD $ 454 6601-22-HDR $ 648 6601-22-UDR $ 743
Ducted Filter Modules—304 Stainless Steel
Nominal
W x D
Standard Model Room-Side Replaceable
  HEPA Filter ULPA Filter HEPA Filter ULPA Filter
  Cat. # Price Cat. # Price Cat. # Price Cat. # Price
2' x 4' 6601-24-HDS Call TUI 6601-24-UDSS Call TUI 6601-24-HDRSS Call TUI 6601-24-UDRSS Call TUI
2' x 3' 6601-23-HDS Call TUI 6601-23-UDSS Call TUI 6601-23-HDRSS Call TUI 6601-23-UDRSS Call TUI
2' x 2' 6601-22-HDS Call TUI 6601-22-UDSS Call TUI 6601-22-HDRSS Call TUI 6601-22-UDRSS Call TUI
Terra FFU Replacement Filters
Type Filter Size /
Feet (mm)
Aluminum Frame
with Andodized Aluminum
Face Grille
304 Stainless Steel
with SS Face Grille
Cat. # Price Cat. # Price
HEPA 2 x 2 (610 x 610)
6601-27 $ 295 6601-27-S $ 436
2 x 3 (610 x 914)
6601-26 $ 351 6601-26-S $ 546
2 x 4 (610 x 1219)
6601-25 $ 353 6601-25-S $ 543
ULPA 2 x 2 (610 x 610)
6601-30 $ 304 6601-30-S $ 604
2 x 3 (610 x 914)
6601-29 $ 361 6601-29-S $ 725
2 x 4 (610 x 1219)
6601-28 $ 402 6601-28-S $ 785
Terra FFU Replacement Filters
Type Filter Size / Feet (mm) Aluminum Frame
304 Stainless Steel Frame
Cat. # Price Cat. # Price
HEPA 2 x 2 (610 x 610)
6601-27-R $ 430 6601-27-RS $ 568
2 x 3 (610 x 914)
6601-26-R $ 475 6601-26-RS $ 627
2 x 4 (610 x 1219)
6601-25-R $ 502 6601-25-RS $ 661
ULPA 2 x 2 (610 x 610)
6601-30-R $ 439 6601-30-RS $ 579
2 x 3 (610 x 914)
6601-29-R $ 510 6601-29-RS $ 673
2 x 4 (610 x 1219)
6601-28-R $ 538 6601-28-RS $ 710

Ceiling-Module Mounting Frame
Stainless steel mounting frames allow ceiling modules to be installed in drywall or other hard ceilings without a ceiling grid.* The frames are sized to hold 2' x 4' fan/filter units or light panels, or 2' x 3' and 2' x 2' fan/filter.

Frames "cradle" the modules, and sit securely in the ceiling cut-out with support from top flange. Continuous seams in the 304 stainless steel frames' corners reduce deposit of contaminating particles and simplify cleaning.
FFU Mounting Frame
FFU Mounting Frame FFU Mounting Frame
Shown with Fan/Filter Unit installed, viewed from above ceiling panel. Ceiling module mounting frame:
2' x 4' shown, holding fan/filter
unit or light panel.
Description Cat. # Price
Mounting Frame: 2' x 4' 6604-02 $ 234
Mounting Frame: 2' x 3' 6604-01 $ 228
Mounting Frame: 2' x 2' 6604-00 $ 222
* Intended for use with supported ceilings that can safely bear the weight of fan/filter unit or light being installed. Mounting frame provides no support beyond the perimeter of the ceiling cut-out.


File Type File Name Publication Date
Manual (PDF) Ducted Filter Modules: Doc. # 1788-24
This document contains general specifications and installation/maintenance instructions for the standard Ducted Filter Module.
10/02/2017
Manual (PDF) Room-Side Replaceable Ducted Filter Modules: Doc. # 1788-23
This document contains general specifications and installation/maintenance instructions for Room-Side Replaceable Ducted Filter Modules.
10/02/2017
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