Holding Frames

Environet Galvanized Holding Frames are the ideal solution for use in applications where cleaning facilities are not available and a higher velocity of air flow is required. Holding Frames are commonly being used today in a variety of applications, including spray booths, residential units, unit ventilators, roof top units and many other applications.

The Environet Holding Frames are constructed using Galvanized Steel, commercially known as Hot Dip G-90 gauge. Holding Frames come with a standard 1x1 back grid made from 28 gauge galvanized steel expanded through 0.55 feed. These filters are designed to hold a filtering pad in placed with the help of a cross wire or hinged gate, both made from Galvanized wire. Holding Frames can use a variety of media such as Fiberglass, Polyester, Hogs Hair, and Foam. Frames may be bound together and are easily assembled into straight or “V bond” systems.

For Non-Standard Holding Frame prices please email customerservice@filtrationmanufacturing.com

Holding Frame Uses:

  • Spray Booths
  • Residential units
  • Unit Ventilators
  • Root Top Units
  • Any application that requires up to 550 FPM air velocity


  • Maximum Temperature is 425 degrees Fahrenheit
  • Available in depths of ½” to 6”
  • Available in non-standard sizes
  • Quantity discounts available
  • All filters will be made exactly as ordered unless a stock part number is used or “nominal” is indicated on the order. Special sized filters, ordered wrong, cannot be returned.