Product Details

  • (4) Replacement pre-filters for standard size Fan Filter Units
  • Pre-filters are an essential feature, prolonging the life of the HEPA/ULPA filter
  • Captures larger particles that would otherwise abuse and quickly wear out the HEPA/ULPA filter
  • MERV 7 general purpose pleated air filters provide between 50% - 69% efficiency for filtering particles between 3 - 10 microns in size (such as mold spores and dust). Suitable for dusty, commercial and industrial workspaces.
  • High strength frame constructed of virgin materials obtained in compliance with forest practices consistent with standards set forth by the Sustainable Forest Initiative (SFI).


Size: 19.5" x 19.5"

Filter Frame Material: Paper

Filter Type: MERV 7 Pre-Filter

Unit of Measure: BOX of 4 EA

Marks & Listings: UL

Weight, Product: 3 lb

Dimensions, Product: 19.5" W x 19.5" D

Weight, Shipping: 3 lb

Dimensions, Shipping: 24" W x 25" D x 5" H

Package Type: SmallPackage

Fan Filter Units With Pre-Filters

  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
Terra Universal WhisperFlow® Filter Fan Units

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.