Terra Part # 6601-24-H
$792
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Accessories related to Terra Part # 6601-24-H
49135
Fan Filter Unit; WhisperFlow, 2'x4', HEPA, 120 V, Powder-Coated Steel

• High Efficiency Particulate Air (HEPA) Filter: 99.99% efficient at 0.3µm particle diameter

• AC 3-speed blower motor

• FDA-approved silicone sealant

• Internal baffling plate and diffuser panel provide quiet uniform air flow across the filter face

• 1/4-20 UNC threaded inserts on corners to allow suspension by guy-wires

• MERV 7 pre-filter, 30% ASHRAE rated

• Low-profile design is ideal for cleanrooms with limited ceiling space

• Removable yellow power cord with 4-pin connector for easy installation to Terra cleanrooms (connector may be used with an optional wall plug adapter; or may be removed entirely to hard-wire the FFU)

• Filters are leak tested in accordance with IEST standards and meet UL 900

See performance data and submittal sheets for additional information

Optional Accessories:

Challenge port kit

Power plug adapter

Stainless surface mount frame for installing FFU in ceiling without T-grid

12” ducted inlet connection adapter

Replacement filter

Filter replacement alarm

Eye bolt package

Ionizing bar

Pre-filter safety cover, for CE conformance

Control panel with night mode switch and power distribution modules

All filter sales are final; returns for this item cannot be accepted

Type: WhisperFlow

Material: Powder-Coated Steel

Filter Replacement Access: Top Side

Size: 2'x4'

Filter Frame Material: Aluminum

Filter: HEPA

Motor Type: Permanent Split capacitor (PSC)

Motor HP: 1/4 hp

Airflow: Positive Pressure

Speed Control: 3-Speed Switch

Blower Type: Forward Curved

Active Filter Face Area: 7.1 ft²

Pre-Filter: MERV 7

Unit of Measure: EA

Marks & Listings: UL, ULC

Electrical Specifications: 120 V, 3.8 A, 1 Ph, 60 Hz

Weight, Product: 71 lb

Dimensions, Product: 23.63"W x 47.63"D x 12.51"H

Weight, Shipping: 91 lb

Dimensions, Shipping: 32.25" W x 58.25" D x 14.38" H

Package Type: Palletized

Manuals & Resources

Blog Post

Air Shower Protection for Cannabis Grow Rooms

Buy Accessories
  1. Ionizing Bar with 8 Emitters
    Ion Bar, 44", 8 Emitters, For Cleanrooms/FFUs, 120 V Stocked Item is in stock and ready for immediate shipping
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  2. Holds fan filter units secure in ceilings without grid. | 6604-01 displayed
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  3. Cable Extension, PVC, 4 Poles, 5M, 22awg, 300V, straight male to straight female with close-up | 6601-39 displayed
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  4. Simplifies filter leak testing and connection of Filter Backpressure Alarm | 6601-99 displayed
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  5. Filter replacement alarm system with integrated minihelic pressure gauge, light and buzzer | 2625-54B-SS displayed
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  6. Night service switch, shown mounted on Modular Hardwall Cleanroom panel, puts FFUs in low-energy mode during off-hours | 6601-70 displayed
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  7. Suitable for air handling | 6602-40 displayed
    Module, UV-C Sanitizing; Residential Air Treatment System; 120V, 1.1A, 60Hz Stocked Item is in stock and ready for immediate shipping
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  8. Four-pin power cord adapter for fan/filter unit allows connection to standard 120VAC/60Hz power receptacle | 6601-13 displayed
    Cord Adapter, MIN4 PL to 16AWG Power Cord for Terra Fan/Filter Unit Stocked Item is in stock and ready for immediate shipping
    $51
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  9. Eyebolt with 1/4"-20 thread for lifting FFUs | 6601-02 displayed
    Eyebolts, 1/4" - 20 thread, for FFU, 4 pack Stocked Item is in stock and ready for immediate shipping
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  10. FFU Connect pack includes flexible ducting and all hardware required to connect and seal the duct. | 6601-01 displayed
    $169
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  11. Duct Flange Adapter for standard FFUs; 12" dia, 19.5" W x 19.5" D x 2" H, galvanized steel
    $99
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  12. FFU Testing and Certification; Flow Rate and Filter integrity
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  13. FasTrak 24-7 Expediting Service
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  14. High Efficiency Particle Filter is rated 99.99% efficient @ 0.3 µm diameter particles | 1681-02 displayed
    Filter; HEPA, 2'x4', Aluminum, Rated 99.99% efficient Stocked Item is in stock and ready for immediate shipping
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  15. MERV 7 pre-filter for Terra Fan Filter Units (FFUs) | 6601-34 displayed
    MERV 7 Pre-Filters for FFUs; Replacements, 19.5" x 19.5" x 7/8 thk., 4 Pack Stocked Item is in stock and ready for immediate shipping
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  16. High Efficiency Particle Filter is rated 99.99% efficient @ 0.3 µm diameter particles | 1681-02 displayed
    Filter; HEPA, 2'x4', Aluminum, Rated 99.99% efficient Stocked Item is in stock and ready for immediate shipping
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Features and Benefits

Quick-Connect Fittings

FFUs and lights can be easily added as cleanrooms requirements change, or disconnected for maintenance, without the need to run additional power lines or involve an electrician.

Gel-Filled Channel on Room-Side Replaceable Filter

Gel-filled channel on room-side replaceable filter forms a tight seal against knife edge on fan housing, allowing fast, simple filter replacement from inside the cleanroom without the need for costly cleanroom shut-down.

Easy-Release Filter Clamp on Room-Side Replaceable FFU

Easy-release clamps rotate to release filter on Room-Side Replaceable Fan Filter Units, simplifying filter servicing without the need for a cleanroom shut-down.

Air Flow Uniformity

Unique WhisperFlow® FFU baffling system and anodized diffuser plate promote uniform air speed across the filter face.

Full Range of Designs, Configurations!

WhisperFlow® FFFUs come in all styles: room-side replaceble, all-stainless steel, HEPA or ULPA filtration, EC energy-saving fans, reverse flow and more (shown: vapor filtration module with UV sanitation lamp).

Eliminate Contaminants and Pathogens

HEPA and ULPA filters capture many bacteria, viruses, and mold spores that contribute to a host of infections for both humans and plant/animal tissue cultures

Long Running FFU Motors

Terra’s filter fan unit motors are rated for 5 years of continuous, 24/7 operation, if the HEPA filters are consistently replaced. To accurately monitor your HEPA filter’s saturation levels, purchase Terra’s audible and visual filter replacement alarm system.

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Cord Adapter, MIN4 PL to 16AWG Power Cord for Terra Fan/Filter Unit
    Four-pin power cord adapter for fan/filter unit allows connection to standard 120VAC/60Hz power receptacle.
  • Ionizing Bar; 22"L, with Installation Kit, for 24 x 24 Fan/Filter Unit
    Ionizing bar, mounted to Fan/Filter Unit, provides a balanced stream of ions to the work area below to neutralize static charge and prevent electro-static discharge; 22" bar shown installed on 2' x 2' FFU.
  • FFU Mounting Frame; Stainless Steel
    Stainless steel Fan Filter Unit (FFU) mounting frame supports FFU on drywall or other rigid ceiling material, viewed from above ceiling panel (FFU not included).
  • Night Service Saves Energy, Extends Filter Life!
    Night service switch, shown mounted on Modular Hardwall Cleanroom panel, puts FFUs in low-energy mode during off-hours; saves 25% of fan operating costs and extends filter life.
  • Filter Replacement Alarm
    The filter replacement alarm monitors filter backpressure and issues an alarm when filter needs replaced (requires selection of fan filter unit with challenge port, order separately).
  • Fan Filter Unit Control System
    Provides room-by-room monitoring and control of Smart WhisperFlow FFUs to maintain target pressure differentials for ISO classification; temperature, humidity and particle monitoring and data logging, as well as dynamic fan set-point control, also available.
  • Power Distribution Modules for Cleanroom FFUs and Lights
    UL-listed power distribution modules include all breakers, transformers and other electrical components for FFU/light connections; allows fast addition or relocation of FFUs or lights without the need for rewiring.
  • Filter Covers Allow Ceiling Wash-Down
    Ceiling panel covers allow wash-down and sterilization of cleanroom walls and ceilings without damage to filter medium; requires BioSafe glass or stainless steel wall panels, which stand up to biocides.
  • Challenge Port for Fan Filter Unit
    Challenge port for Fan/Filter Units simplifies filter leak testing and connection of Filter Backpressure Alarm (shown with optional pressure gauge; must be ordered with FFU).

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.*

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 * 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.

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