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Roomside replaceable filters offers gel-sealed filter seats securely against
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Product Group:
6601-PP-62
6601-PP-62

ULPA Filters, Roomside Replaceable

Manufactured By: Terra Universal
  • Available Certified ISO Grade Designs: ISO 7, ISO 8
  • 99.9995% efficient at filtering particles down to 0.1 micrometers
  • Applications: Pharmaceutical, semiconductor, healthcare, and other controlled environment applications
  • Features a lightweight and economical aluminum frame
  • Roomside-Replaceable (RSR) design allows filter replacement without dismantling FFU from ceiling
  • Compatible with all industry-standard FFU brands in 2' x 2', 2' x 3' and 2' x 4' sizes

• Unit of Measure: EA

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Stocked ULus Listed ISO 7 Icon Volume Discount New Lower Price Discount
Manufactured By: Terra Universal
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 Terra Part #Price Ships in
4'x4' Aluminum White Steel Mesh No 6603-83A-R $1,388 5-10 Days2
In stock soon
2'x2' Aluminum White Steel Mesh Yes 6601-30B-R-RC $705 5-10 Days3
In stock soon
2'x2' Aluminum White Steel Mesh No 6601-30-R $705 1-3 Days4
Quick Ship+ Available In stock
2'x3' Aluminum White Steel Mesh Yes 6601-29B-R-RC $821 5-10 Days5
In stock soon
2'x3' Aluminum White Steel Mesh No 6601-29-R $821 1-3 Days6
Quick Ship+ Available In stock
2'x4' Aluminum White Steel Mesh Yes 6601-28B-R-RC $869 1-3 Days7
Only 9 left in stock
2'x4' Aluminum White Steel Mesh No 6601-28A-R $869 1-3 Days8
69 in stock
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Up to 30-day trial periods, free return shipping and on-site training available for qualified equipment.

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*includes web discount for online orders Web-exclusive discount applies only to quotes/orders placed directly on our website; not valid for phone, email, or other ordering methods.
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Product Details
Product Details
  • Available Certified ISO Grade Designs: ISO 7, ISO 8
  • 99.9995% efficient at filtering particles down to 0.1 micrometers
  • Applications: Pharmaceutical, semiconductor, healthcare, and other controlled environment applications
  • Features a lightweight and economical aluminum frame
  • Roomside-Replaceable (RSR) design allows filter replacement without dismantling FFU from ceiling
  • Compatible with all industry-standard FFU brands in 2' x 2', 2' x 3' and 2' x 4' sizes
  • Certified and tested to UL 900 for fire safety
  • Designed to capture microscopic pathogens and particles.
  • Remove an extremely wide variety of contaminants from the air, including particles smaller than a micron.
  • Large quantities in-stock and packaged for immediate shipment.
  • Because filters are delicate and subject to damage during handling, all filter sales are final; no failure claims can be accepted.
  • Replacement guideline: The filter should typically be replaced when the pressure drop (airflow resistance) has increased to about twice the initial level

• Unit of Measure: EA

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Fan Filter Units With HEPA & ULPA Filters

  • HEPA filters prevent infections HEPA Filters Prevent Infections
  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
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.
Terra Universal WhisperFlow® Filter Fan Units
Overview video of Terra Universal's comprehensive portfolio of filter fan units Terra Universal WhisperFlow® Filter Fan Units Overview video of Terra Universal's comprehensive portfolio of filter fan units
Features & Benefits

Features and Benefits

Products Tailored to Your Cleanroom Environment

Provide Terra with your desired ISO Grade design. We will tailor the product to meet your criteria and certify it with a report appended to your invoice. Certificate includes all the necessary information to streamline audits and facility compliance.

UL 900 Certified for Fire Safety

HEPA and ULPA filters are UL certified for UL 900 to meet local and state fire safety requirements for most applications. The standard covers requirements and tests for allowable combustibility and amount of smoke generated.

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.
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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.