Nordic Pure 18x25x1M13MiniPleat-4 Merv 13 Mini Pleat Filter

Product Description

The NORDIC PURE 18x25x1M13MiniPleat-4 is a MERV 13 mini pleat air filter designed for residential and light commercial HVAC systems. Each box contains 4 filters with an actual size of 17.5 x 24.5 x 0.75 inches, fitting nominal 18x25x1 filter slots. The mini pleat design incorporates 2.5 times more pleats than standard filters, increasing surface area for particle capture without significantly restricting airflow. The synthetic polyester fiber media carries a MERV 13 rating, equivalent to MPR 1900-2200, making it effective against fine particulates including smoke, bacteria, and allergens. Licensed HVAC technicians and building maintenance crews install these as part of routine filter replacement programs.

These filters are suited for residential forced-air furnaces, central air conditioning systems, and light commercial air handlers where improved indoor air quality is a priority. The higher pleat density makes them a strong choice for environments with elevated dust loads, renovation activity, pet dander, or occupants with allergy or respiratory sensitivities. Nordic Pure recommends replacing the filter every 2 to 3 months depending on system runtime and environmental conditions. The moisture-resistant beverage board frame holds its shape in humid duct environments, reducing the risk of frame collapse during the filter cycle.

Key Features

• MERV 13 rating captures lint, household dust, pollen, pet dander, dust mites, mold spores, smoke particles, virus carriers, and allergens
• 2.5 times more pleats than standard filters for greater particle capture surface area
• Actual size 17.5 x 24.5 x 0.75 inches for a precise fit in nominal 18x25x1 filter slots
• Heavy-duty 2-part moisture-resistant beverage board frame resists collapse in humid conditions
• Self-supporting synthetic polyester fiber media requires no internal wire backing
• Manufactured in the USA

Compatibility

Designed as an OEM-style replacement for residential and light commercial HVAC systems using nominal 18x25x1 filter slots. Always verify the actual filter opening dimensions against the actual size of 17.5 x 24.5 x 0.75 inches before installation, as nominal and actual sizes frequently differ across equipment brands.

Installation Notes

HVAC technicians and qualified maintenance personnel should power down the air handler or furnace at the disconnect before servicing the filter compartment. Confirm airflow direction arrow on the filter frame aligns with the direction of airflow toward the blower. Nominal filter sizes do not always match actual slot dimensions, so measure the existing filter or the filter rack opening before ordering. Nordic Pure recommends a replacement interval of every 2 to 3 months, though high-dust or high-runtime environments may require more frequent changes.