The store will not work correctly in the case when cookies are disabled.
Menu
Worldwide Pricing and Secure Global Shipping Available!
Diffuser with Room-side Adjustable Damper allows for precision control of airflow as well as allowing users to seal the FFU before changing filter | 6601-24B-HD-AD displayed
Customer must determine if filter system leakage testing is required for their application. This unit is not full seam welded. If a leak test is required, full seam welded units, leak-tested to meet ISO 14644-3 standards, are optionally available
Includes 12"-diameter x 2"H collar for secure connection to air supply duct
Airflow performance is dependent upon flow of supplied air handler
1/4-20 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 unit is ordered)
Purchase optional Challenge Port Kit separately
Filter: 99.99% efficient HEPA, rated for particles of 0.3µm in diameter or larger
Lightweight for easy installation
Roomside-replaceable HEPA filter prevents cleanroom shutdowns during regular filter changes
Filter includes aluminum frame with anodized aluminum filter face grille; all-stainless steel model available
Removable filter accessible from inside cleanroom for easy replacement or servicing
Because filters are delicate and subject to damage during handling, all filter sales are final; no failure claims can be accepted
Specifications
• Type: Ducted, RSR
• Material: Powder-Coated Steel
• Filter Replacement Access: Room-Side
• Size: 2'x4'
• Filter Frame Material: Aluminum
• Filter: HEPA
• Motor Type: None
• Airflow: Positive Pressure
• Certified ISO Grade Design: ISO 6
• ISO Rated Air Cleanliness: ISO 5
• Unit of Measure: EA
• Weight, Product: 71 lb
• Dimensions, Product: 23.63" W x 47.63" D x 12.51" H
• Weight, Shipping: 91 lb
• Dimensions, Shipping: 53" W x 53" D x 20" H
• Package Type: Palletized
Features and Benefits
Terminal Diffuser with HEPA Filter
Ducted terminal housing with HEPA filter provides clean airflow into cleanroom. When adjustable damper is included operator has the ability to increase/decrease airflow with a screw.
Diffuser with Room-side Adjustable Damper
Terra Universal's Diffuser with Room-side Adjustable Damper allows for precision control of airflow as well as allowing users to seal the FFU before changing filters.
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
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
Website Metric Conversion Tool
Easily convert any product specification to metric units of measure using Terra's web-based metric conversion tool
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.
Copyright 1999 - 2026 Terra Universal. Inc. All rights reserved.
