395 x 629mm 25mm (1″) Cardboard Filters

A 395 x 629mm pleated cardboard panel filter with a 25mm (1″) depth, designed for standard HVAC return air grilles and air handling units. Constructed with a synthetic pleated media in a rigid cardboard frame, capturing dust, pollen, and airborne particles to maintain indoor air quality. Suited to light commercial and residential systems where regular replacement is part of routine maintenance.