Parker VARIFLOW Extended Surface Rigid Air Filter
24 gauge galvanized, or aluminized steel cell for HT models. Ultrafine microglass paper pleating. Operating temperature ranges up to 900°F.

Overview
Features
- Ultrafine microglass paper pleating
- Max operating temperature range(s):
- Standard models: 350°F
- High temperature models: 500/750/900°F
- Initial resistance: max 1.2in W.G.
- Dimensions:
- 24x24x12
- 20x25x12
- Galvanized steel enclosure with single header
- Enclosure:
- Galvanized steel with standard 350°F rated models
- Aluminized steel with high temperature models
- Optional double header with MERV 14 variant
- Microglass fiber pack sealant
- High temperature gasket with HT models
Description
The Parker VARIFLOW Extended Surface Rigid Air Filter is constructed from 24 gauge galvanized steel, with aluminized steel cell variants for environments reaching above 350°F temperatures. Cross braces and expanded metal faceguards ensure additional support to protect the structural integrity of the microglass pleating. Corrugated aluminum separators ensure proper spacing between pleats at all flow rates. Offered in MERV 11 and 14 ratings, with a maximum face velocity of 500 FPM, and final resistance of 1.2in W.G.. VARIFLOW HT models feature a high temperature gasket on the air leaving side, sealing the filter in place and preventing bypass.
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