Worldwide Pricing and Secure Global Shipping Available!
  • Get a QuickQuote
  • Free Consultation +1 (714) 578-6100
  • Track Order
    Sorry, no orders are open for tracking
Menu Terra Universal Home
Search
Menu
Units
US
Account
Cart
Quote
4' x 4' stainless steel fan filter unit with HEPA filter and energy-efficient EC motor for cleanroom applications | 6601-44A-H displayed
Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan/Filter Units

Fan Filter Unit; Aluminum, 4'x4', EC Motor, Room-Side Replaceable, 208-240V

  • Available Certified ISO Grade Designs: ISO 7, ISO 8
  • Backward inclined blower wheel for efficiency in airflow performance
  • 1.0 in. wg (200 Pa) of external static capability
  • Noise levels are 63 dBA at maximum airflow and 46 dBA at 90 FPM
  • Walkable plenum is rated to 250 lbs, providing easy access for maintenance
  • Handles for convenient carrying and filter installation

• Type: RSRE

• Material: Aluminum

• Filter Replacement Access: Room-Side

• Size: 4'x4'

• Filter: HEPA

• Motor Type: Electronically Commutated (EC)

• Speed Control: Variable Speed Control

• Active Filter Face Area: 12.1 ft²

• Full Seam Welded: No

• UL-Listed: Yes

• Airflow Volume: 665 to 1900 CFM

• Available Certified ISO Grade Designs: ISO 7, ISO 8

• Certified ISO Grade Design: ISO 7

• UL File Number: E152685

• UL Standard: UL 507

• Unit of Measure: EA

Read more
ULus Listed ISO 5 Icon
Print
Need Help?

(714) 578-6100

Mon-Fri, 7am - 6pm PST

Chat

Want a quote quickly ?
Submit a QuickQuote request
6601-44A-HR-220
Terra Part # 6601-44A-HR-220
$3,300
Accessories related to Terra Part # 6601-44A-HR-220
85103
Fan Filter Unit; Aluminum, 4'x4', EC Motor, Room-Side Replaceable, 208-240V
View Shopping Cart View Quote Cart
CONFIGURE & ADD TO CART
Usually ships in 42-48 business days

Want it faster ? Read about FasTrak

Details & Specs
Manuals & Resources
Related Products
Product Details
  • Available Certified ISO Grade Designs: ISO 7, ISO 8
  • Backward inclined blower wheel for efficiency in airflow performance
  • 1.0 in. wg (200 Pa) of external static capability
  • Noise levels are 63 dBA at maximum airflow and 46 dBA at 90 FPM
  • Walkable plenum is rated to 250 lbs, providing easy access for maintenance
  • Handles for convenient carrying and filter installation
  • Finger guard protected inlet to protect users and the equipment
  • Electronically commutated motor (EC) offers quiet, reliable operation with minimal energy consumption.
  • Mill finished aluminum exterior
  • Universal Control card offers three (3) modes of operation:
  •           MODBUS RTU for network control,
  •           Analog control via 0 -10 VDC input
  •           Manual onboard potentiometer for direct speed adjustments.
  • Room-side replaceable filters and motor, simplifying filter maintenance and replacement.
  • 1 room-side challenge port and 1 room-side static pressure/concentration port to facilitate real-time filter testing and pressure monitoring during operation.
  • WOF - No filter included, ordered and shipped separately

• Type: RSRE

• Material: Aluminum

• Filter Replacement Access: Room-Side

• Size: 4'x4'

• Filter: HEPA

• Motor Type: Electronically Commutated (EC)

• Speed Control: Variable Speed Control

• Active Filter Face Area: 12.1 ft²

• Full Seam Welded: No

• UL-Listed: Yes

• Airflow Volume: 665 to 1900 CFM

• Available Certified ISO Grade Designs: ISO 7, ISO 8

• Certified ISO Grade Design: ISO 7

• UL File Number: E152685

• UL Standard: UL 507

• Unit of Measure: EA

• Marks & Listings: UL

• Electrical Specifications: 208-240V, 3.7 A, 1 Ph, 50/60 Hz

• Dimensions, Product: 47.63" W x 47.63" D x 17.92" H

Show more
Manuals & Resources
Blog Post
Air Shower Protection for Cannabis Grow Rooms
Other products you may find relevant
  1. Top-side HEPA filter for 4' x 4' fan filter units | 6603-81 displayed
    Filter; HEPA, 4'x4', Topper, Anodized Aluminum Frame, Rated 99.99% efficient
    $1,275
    Usually Ships in 5 - 10 days
  2. Room-side replaceable filter for 4' x 4' fan filter units | 6603-82 displayed
    Filter; HEPA, RSRE, 4'x4', Anodized Aluminum Frame, Rated 99.99% efficient
    $1,350
    Usually Ships in 35 - 45 days
  3. Smart Fan Filter Unit with EC motor meets low-energy requirements (2' x 2' model shown) | 6601-22-H-EC displayed
    Group of 27 products
    Smart® WhisperFlow® Fan Filter Units (EC Motor) From
    As low as $1,020
    Some ship in 0 - 2 days
  4. WhisperFlow® Fan Filter Units (FFUs) provide a uniform flow of microfiltered air to meet cleanliness standards down to Class 10/ISO 4 | 6601-24-H displayed
    Group of 57 products
    WhisperFlow® Fan Filter Units From
    As low as $744
    Some ship in 0 - 2 days
  5. Static-dissipative PVC panels remove surface charges and the particles they attract | 6600-73A displayed
    Group of 24 products
    Universal™ Hardwall Modular Cleanrooms
    Request Quote
    Some ship in 20 - 26 days
  6. Cleanroom control panel provides centralized control and monitoring of cleanroom functions; status indicator LED blinks when FFU filters need replacement | 6600-23A-NS displayed
    Group of 5 products
    Standard Control Panels for Fan Filter Unit (FFU) Systems From
    As low as $4,425
    Some ship in 5 - 7 days
  7. Cleanroom control panel with built-in Tier 4 touchscreen console; datalogging (pressure/temp/RH) and FFU control for up to 16 rooms, 200 FFUs | 6607-04 displayed
    Group of 8 products
    Smart® Control Panels for Fan Filter Unit (FFU) Systems From
    As low as $5,696
    Some ship in 1 - 3 days
  8. Holds fan filter units secure in rigid ceilings without a T-bar grid. | 6604-00 displayed
    Group of 4 products
    Fan Filter Unit Mounting Frames From
    As low as $341
    Some ship in 0 - 2 days
  9. Lightweight 6-channel airborne particle counter with a sensitivity range from 0.2- 2.0 μm; ideal for spot-checking critical environments and cleanrooms
    Group of 4 products
    Lighthouse Handheld Airborne Particle Counters by LWS From
    As low as $4,346
    Some ship in 5 - 10 days
  10. Filter replacement alarm system with integrated minihelic pressure gauge, light and buzzer | 2625-54B-SS displayed
    Group of 3 products
    Filter Replacement Alarm System for Fan Filter Units From
    As low as $799
    Some ship in 1 - 3 days
  11. Provides efficient disinfection of cleanrooms and laboratories | 3800-26 displayed
    Germicidal UV Illuminator; for Modular Cleanrooms, Universal, 120 V
    $3,013
    Usually Ships in 15 - 19 days
  12. fixture contains four UV light tubes for fluorescence detection | 3800-27 displayed
    Fluorescent Detection UV Illuminator; for Modular Cleanrooms, Universal
    $573
    Usually Ships in 5 - 7 days
  13. Be prepared! Don't get left in the dark. Emergency lighting panels give you enough time to get to safety or to work through a minor power interuption. | 3800-47A displayed
    Group of 2 products
    Cleanroom LED Light Panel with Built-In Emergency Battery From
    As low as $1,121
    Some ship in 2 - 4 days
  14. Ion bar kit safely neutralizes charges to protect against electro-static charges. Attaches to inside ceiling of glovebox. Ion bar sold separately. | 2005-92 displayed
    Group of 4 products
    Ionizing Bars From
    As low as $587
    Some ship in 1 - 3 days
  15. 2' x 2' Cleanroom LED light panel with emergency battery back-up in case of power failure | 3800-48 displayed
    LED Light Panel with Built-In Emergency Battery, 2' x 2', Cleanroom-Grade
    $1,121
    Usually Ships in 2 - 4 days
  16. Filter Integrity and Performance Certification
    Filter Integrity and Performance Certification
    Request Quote
  17. Filter replacement alarm system with integrated minihelic pressure gauge, light and buzzer | 2625-54B-SS displayed
    Universal™ Filter Replacement Alarm; for Fan Filter Unit, Audible & Visible Alert, Stainless Steel, 120 V
    $799
    Usually Ships in 1 - 3 days
  18. | 6703-81 displayed
    Group of 12 products
    Cleanroom Ceiling Panels and Tiles From
    As low as $24
    Some ship in 0 - 2 days
Buy Accessories
  1. Room-side replaceable filter for 4' x 4' fan filter units | 6603-82 displayed
    Filter; HEPA, RSRE, 4'x4', Anodized Aluminum Frame, Rated 99.99% efficient
    $1,350
    Increase Down Increase Up
  2. Monitors airborne particles and differential pressure in cleanroom zones | 6607-14 displayed
    CleanWatch+® DualZone™ Environmental Monitoring System; Particle Counts (Inside/Outside), Differential Pressure, Cloud Data Logging In stock soon
    $2,598
    Increase Down Increase Up

Fan Filter Units

  • HEPA filters prevent infections HEPA Filters Prevent Infections
  • Watch Terra's Video on a HEPA Filtered Laminar Flow Cabinet Smoke Test
  • COVID-19 Contamination Control Products by Terra Universal
  • Ducted Reverse-Flow Fan Filter Unit COVID-19 Infection Control
HEPA filters prevent infections
HEPA filters capture and mitigate airborne particles that can cause infections. HEPA Filters Prevent Infections HEPA and ULPA filters capture and mitigate airborne particles, as well as pathogens including Rhinoviruses, Influenza, SARS-CoV-2, and RSV. Filters also combat aerosolized bacteria like C. Difficile, a prevalent cause of hospital-acquired infections.
This smoke test demonstrates the airflow properties of Terra Universal's HEPA Filtered Laminar Flow Cabinet Watch Terra's Video on a HEPA Filtered Laminar Flow Cabinet Smoke Test This smoke test demonstrates the airflow properties of Terra Universal's HEPA Filtered Laminar Flow Cabinet
Terra Universal offers an extensive portfolio of COVID-19 contamination control products for employee protection, surface disinfection and product sterilization COVID-19 Contamination Control Products by Terra Universal As personal and professional lives shift dramatically in response to the COVID-19 pandemic, businesses are searching for methods to reduce the transmission risk of COVID-19 in the workplace. Terra Universal offers an extensive product portfolio to support employee protection, surface disinfection and product sterilization. Let’s take a closer look at two products designed to control the spread of COVID-19.
Ducted Reverse-Flow Fan Filter Unit
6601-PP-09

COVID-19 Infection Control

Terra’s in-stock ceiling-mounted reverse-flow ducted filter fan units convert any space into a negative pressure isolation room

Terra’s reverse flow ducted fan filter units create negative pressure for airborne infection isolation spaces | 6601-24A-HVR displayed COVID-19 Infection Control Terra’s in-stock ceiling-mounted reverse-flow ducted filter fan units convert any space into a negative pressure isolation room

Features & Benefits

Learn More: Filter Fan Units Prevent Infection
Print Copy Copied

Did You Know?
HEPA/ULPA Filters Do More Than Meet ISO Requirements - they also prevent infection.

Most cleanroom professionals understand that HEPA and ULPA filters capture contaminants that degrade particle-sensitive samples. But they also help remove bacteria, mold spores, and many viruses that contribute to a host of infections.

Most common bacteria are contained by the 0.3-micron pore size of high-efficiency particular air (HEPA) filters. Ultra-Low Penetration Air (ULPA) filters, which are rated 99.999% efficient at retaining particles of 0.12 microns and larger in diameter, capture ultra-fine contaminants, including many large viruses and mold spores.

These filters also remove aerosol-born pathogens - germs that hitch a ride on larger particles and liquid droplets that are captured in a HEPA or ULPA filter. HEPA- or ULPA-based Fan/Filter Units (FFUs) thus can play an important role in infection prevention in surgical theaters, ICUs and other medical settings.

Additionally, HEPA filters can help filter pollen, tiny insects, bacteria, mold, and other fungal spores that might be present during plant tissue culture or cannabis production. Contaminants such as these can find a way in via personnel or normal HVAC units and can blight crops and reduce yields. HEPA Filters help increase crop yields, pass inspection/meet regulations, and reduce contamination.

Here is a list of common human pathogens that HEPA/ULPA filters capture and remove from circulation:

Pathogens: Bacteria and Diseases
  • SARS-CoV-2: Coronavirus (COVID-19)
  • Escherichia coli: Gastrointestinal infection
  • Bacillus anthracis : Anthrax
  • Aspergillus brasiliensis: Sinus infections
  • Francisella tularensis: Tularemia
  • Bordetella pertussis : Whooping cough
  • Mycoplasma pneumoniae: Pneumonia
  • Chlamydia pneumoniae: Bronchitis
  • Chlamydia psittaci : Psittacosis
  • Klebsiella pneumoniae: Opportunistic infections
  • Haemophilus influenzae : Meningitis
  • Coxiella burnetii: Q fever
  • Pseudomonas aeruginosa: Opportunistic infections
  • Actinomyces israelii: Actinomycosis
  • Legionella pneumophila: Legionaire's disease
  • Thermoactinomyces sacchari: Farmer's lung
  • Alcaligenes: Opportunistic infections
  • Streptococcus pyogenes: Scarlet fever
  • Mycobacterium Tuberculosis: Tuberculosis
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Filter,replacement,roomside,4x4

    Room-side Replaceable 4' x 4' Filter

    This room-side replaceable filter is suited for 4' x 4' fan filter units. Room-side replaceable units allow for an easier replacement process than top-side units.
Products similar to this one
  1. WhisperFlow Fan/Filter Units feature internal baffling and anodized aluminum diffuser panels provide quiet, uniform air fow | 6601-24-H displayed
    Fan Filter Unit; WhisperFlow®, 2'x4', ULPA, 120 V, Powder-Coated Steel
    $1,005
    Usually Ships in 0 - 2 days
  2. 4' x 4' stainless steel fan filter unit with HEPA filter and energy-efficient EC motor for cleanroom applications | 6601-44A-H displayed
    Fan Filter Unit; Stainless Steel, 4'x4', EC Motor, Top Side Replaceable, 277 V
    $4,100
    Usually Ships in 42 - 48 days
Other products you may find relevant
  1. Top-side HEPA filter for 4' x 4' fan filter units | 6603-81 displayed
    Filter; HEPA, 4'x4', Topper, Anodized Aluminum Frame, Rated 99.99% efficient
    $1,275
    Usually Ships in 5 - 10 days
  2. Room-side replaceable filter for 4' x 4' fan filter units | 6603-82 displayed
    Filter; HEPA, RSRE, 4'x4', Anodized Aluminum Frame, Rated 99.99% efficient
    $1,350
    Usually Ships in 35 - 45 days
  3. Smart Fan Filter Unit with EC motor meets low-energy requirements (2' x 2' model shown) | 6601-22-H-EC displayed
    Group of 27 products
    Smart® WhisperFlow® Fan Filter Units (EC Motor) From
    As low as $1,020
    Some ship in 0 - 2 days
  4. WhisperFlow® Fan Filter Units (FFUs) provide a uniform flow of microfiltered air to meet cleanliness standards down to Class 10/ISO 4 | 6601-24-H displayed
    Group of 57 products
    WhisperFlow® Fan Filter Units From
    As low as $744
    Some ship in 0 - 2 days
  5. Static-dissipative PVC panels remove surface charges and the particles they attract | 6600-73A displayed
    Group of 24 products
    Universal™ Hardwall Modular Cleanrooms
    Request Quote
    Some ship in 20 - 26 days
  6. Cleanroom control panel provides centralized control and monitoring of cleanroom functions; status indicator LED blinks when FFU filters need replacement | 6600-23A-NS displayed
    Group of 5 products
    Standard Control Panels for Fan Filter Unit (FFU) Systems From
    As low as $4,425
    Some ship in 5 - 7 days
  7. Cleanroom control panel with built-in Tier 4 touchscreen console; datalogging (pressure/temp/RH) and FFU control for up to 16 rooms, 200 FFUs | 6607-04 displayed
    Group of 8 products
    Smart® Control Panels for Fan Filter Unit (FFU) Systems From
    As low as $5,696
    Some ship in 1 - 3 days
  8. Holds fan filter units secure in rigid ceilings without a T-bar grid. | 6604-00 displayed
    Group of 4 products
    Fan Filter Unit Mounting Frames From
    As low as $341
    Some ship in 0 - 2 days
  9. Lightweight 6-channel airborne particle counter with a sensitivity range from 0.2- 2.0 μm; ideal for spot-checking critical environments and cleanrooms
    Group of 4 products
    Lighthouse Handheld Airborne Particle Counters by LWS From
    As low as $4,346
    Some ship in 5 - 10 days
  10. Filter replacement alarm system with integrated minihelic pressure gauge, light and buzzer | 2625-54B-SS displayed
    Group of 3 products
    Filter Replacement Alarm System for Fan Filter Units From
    As low as $799
    Some ship in 1 - 3 days
  11. Provides efficient disinfection of cleanrooms and laboratories | 3800-26 displayed
    Germicidal UV Illuminator; for Modular Cleanrooms, Universal, 120 V
    $3,013
    Usually Ships in 15 - 19 days
  12. fixture contains four UV light tubes for fluorescence detection | 3800-27 displayed
    Fluorescent Detection UV Illuminator; for Modular Cleanrooms, Universal
    $573
    Usually Ships in 5 - 7 days
  13. Be prepared! Don't get left in the dark. Emergency lighting panels give you enough time to get to safety or to work through a minor power interuption. | 3800-47A displayed
    Group of 2 products
    Cleanroom LED Light Panel with Built-In Emergency Battery From
    As low as $1,121
    Some ship in 2 - 4 days
  14. Ion bar kit safely neutralizes charges to protect against electro-static charges. Attaches to inside ceiling of glovebox. Ion bar sold separately. | 2005-92 displayed
    Group of 4 products
    Ionizing Bars From
    As low as $587
    Some ship in 1 - 3 days
  15. 2' x 2' Cleanroom LED light panel with emergency battery back-up in case of power failure | 3800-48 displayed
    LED Light Panel with Built-In Emergency Battery, 2' x 2', Cleanroom-Grade
    $1,121
    Usually Ships in 2 - 4 days
  16. Filter Integrity and Performance Certification
    Filter Integrity and Performance Certification
    Request Quote
  17. Filter replacement alarm system with integrated minihelic pressure gauge, light and buzzer | 2625-54B-SS displayed
    Universal™ Filter Replacement Alarm; for Fan Filter Unit, Audible & Visible Alert, Stainless Steel, 120 V
    $799
    Usually Ships in 1 - 3 days
  18. | 6703-81 displayed
    Group of 12 products
    Cleanroom Ceiling Panels and Tiles From
    As low as $24
    Some ship in 0 - 2 days
Buy Accessories
  1. Room-side replaceable filter for 4' x 4' fan filter units | 6603-82 displayed
    Filter; HEPA, RSRE, 4'x4', Anodized Aluminum Frame, Rated 99.99% efficient
    $1,350
    Usually Ships in 35 - 45 days
  2. Monitors airborne particles and differential pressure in cleanroom zones | 6607-14 displayed
    CleanWatch+® DualZone™ Environmental Monitoring System; Particle Counts (Inside/Outside), Differential Pressure, Cloud Data Logging
    $2,598
    Usually Ships in 5 - 7 days

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
  • FasTrak 24/7 assigns a dedicated production team plus a dedicated senior expeditor working three shifts to meet your delivery specification.
  • FasTrak 24/7 guarantees* to meet the agreed-to specified ship date.

Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.