Air filter set SPC Duco Filterset 1 x Coarse 65% / 1 x ePM1 55% Energy SkyDUCO

SPC Duco Filterset 1 x Coarse 65% / 1 x ePM1 55% Energy SkyDUCO is a two-piece replacement air filter set designed for ventilation and HVAC systems that require a coarse G-class filter together with a fine particulate filter. The set includes one coarse 65% filter for capturing larger dust and lint particles and one ePM1 55% filter for reducing fine particulate matter down to the submicron range. It is intended for routine maintenance to help maintain designed airflow, protect downstream components and improve indoor air cleanliness in residential and light commercial installations.

Advantages

The combination of a coarse 65% filter and an ePM1 55% filter provides staged filtration that extends service life of the finer filter by removing coarse contaminants first, while the fine ePM1 element reduces small particles responsible for indoor air quality issues. Both elements are sized to fit compatible Duco-style filter housings and are constructed to maintain consistent airflow characteristics when replaced on schedule. Using the matched set helps protect fans, heat exchangers and ductwork from particulate buildup and supports stable ventilation system performance.

Suitable for

• Routine maintenance of residential ventilation units
• Light commercial HVAC systems requiring coarse and ePM1 filtration
• Protecting fans, heat exchangers and ductwork from dust and fine particles
• Improving indoor air quality where moderate particle reduction is needed

Key specifications

• Filter set composition: 1 x coarse filter (65% capture efficiency), 1 x fine filter (ePM1 55% capture efficiency)
• Filtration classes: coarse (for larger particles) and ePM1 55% (for fine particulate matter)
• Intended application: ventilation and HVAC air filtration for residential and light commercial use
• Function: staged particle removal to protect system components and improve air cleanliness

How to use

Turn off the ventilation unit and follow the manufacturer’s instructions for accessing the filter compartment. Remove the existing filters, inspect the filter frame and housing for damage or excessive dust, and insert the coarse 65% filter in the upstream position followed by the ePM1 55% filter in the downstream position, ensuring correct orientation and a secure fit. Close the compartment, restore power and check system airflow. Replace filters according to the ventilation system manufacturer’s recommended schedule or sooner if pressure drop or visible soiling indicates reduced performance.

Usage recommendations

Replace both filters as a matched set to maintain designed filtration performance; inspect filters periodically and follow local guidelines for disposal or recycling of used filter media.