Field Controls 46600407 Air FilterFLEX 1 Flex Filter provides a 16x20 + 20x20 filtration solution that replaces 5" filters, ideal for upgrading HVAC and industrial air handling without ductwork changes. Designed to fit standard housings, it supports quick retrofits in new or retrofit projects, delivering consistent airflow and reliable particle capture across a wide range of applications. By combining two compatible sizes in one unit, this filter streamlines inventory and simplifies

safety interlocks

fail-safe damper positioning in light-duty applications

Featuring a Type Snap Fit design and a 36-inch length

Designed for reliability in HVAC and industrial settings

Designed for use on CAS-2B

5 PSI maximum pressure

Compatible with natural gas water heaters and AO Smith replacement parts

Designed to meet stringent quality standards

This essential part enhances a gas analyzer's accuracy and reliable performance by delivering a robust

it withstands high operating temperatures and resists wear in steady HVAC cycles

Applications: ovens

Mounting 4" x 4" junction box