Terra Part # 6601-24-HD
$529
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Accessories related to Terra Part # 6601-24-HD
55504
Laminar Flow Diffuser with HEPA Filter, Ducted, 2'x4', WhisperFlow

• Includes 12”-diameter x 2”H collar for connection to air supply; Airflow performance depends on flow of supplied air handler

• 1/4-20 UNC threaded inserts in top corners, accommodate eyebolts to facilitate installation using suspended guy wires (order eyebolt package separately)

• Includes FDA-approved silicone sealant (specify acrylic urethane or other Required sealant type when FFU is ordered)

• Purchase optional Challenge Port Kit separately

• Filter: 99.99% efficient High-Efficiency Particular Air, rated at particles 0.3µm diameter

• Because filters are delicate and subject to damage during handling, all filter sales are final; no failure claims can be accepted

Type: Ducted

Material: Powder-Coated Steel

Filter Replacement Access: Top Side

Size: 2'x4'

Filter Frame Material: Aluminum

Filter: HEPA

Motor Type: None

Airflow: Positive Pressure

Unit of Measure: EA

Electrical Specifications: None

Weight, Product: 71 Lbs

Dimensions, Product: 23.63" W x 47.63" D x 11.17" H

Weight, Shipping: 91 lb

Dimensions, Shipping: 53"W x 53"D x 20"H

Package Type: Palletized

Manuals & Resources

Blog Post

Air Shower Protection for Cannabis Grow Rooms

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  5. Simplifies filter leak testing and connection of Filter Backpressure Alarm  |  6601-99 displayed
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  7. FasTrak 24-7 Expediting Service
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Fan Filter Units

  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
  • 2' x 4' Ducted HEPA Filter Unit Ducted HEPA Filter Unit, 2' x 4'
Terra Universal WhisperFlow® Filter Fan Units
2' x 4' Ducted HEPA Filter Unit

Features and Benefits

Protect Against Contaminants and Pathogens

HEPA and ULPA filters help capture many bacteria, viruses (COVID-19), 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.

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

Comprehensive Product Portfolio

Terra’s comprehensive product portfolio includes solutions for every application and budget. Our technical sales staff will guide you toward the product most suitable for your requirements.

Long-Term Customers

Terra is committed to building long-term relationships with satisfied clients; 94% of orders each year come from repeat customers

Complete Order Transparency

Using Terra’s OnTrak system, our customers can view real-time production updates, receive shipment notifications and track their orders until they arrive at their facility

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • 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.
  • Filter Unit Mounting Frame; Stainless Steel, 2' x 2'
    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).
  • 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).
  • 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).
  • Safely Mount FFU’s Above Floor for Horizontal Laminar Airflow
    The portable FFU base stand can be easily positioned to supply Class 100 horizontal laminar flow into a room or enclosure. It can also be positioned next to sensitive equipment/materials that are mounted close to the floor.

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.

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