This 290 x 594mm cardboard-frame panel filter is rated to the F5 standard, a medium efficiency grade suited to ducted air conditioning return air applications. It captures larger airborne dust, lint, hair and coarse particulate, helping keep coils, ductwork and downstream components clean while maintaining good airflow through the system.
Built with a rigid cardboard frame and pleated filter media, it is designed as a disposable, drop-in replacement for a half-size panel opening, commonly paired with a second filter to fill a standard 594 x 594mm return air grille or AHU frame. Suited to general residential and light commercial ducted return air systems, where it protects coils and ductwork from everyday dust build-up and helps maintain steady airflow.
For best results, replace regularly as part of routine ducted air conditioning maintenance to protect system performance and indoor air quality.
