Nordic Pure 18x25x1M7-4 Pleated Air Filter Merv 7 4 Pack

Product Description

The NORDIC PURE 18x25x1M7-4 is a MERV 7 pleated air filter sold in a 4-pack, designed for residential and light commercial HVAC systems including central air conditioners and gas or electric furnaces. The filter media is electrostatically charged to capture large airborne particles such as household dust, pollen, mold spores, and pet dander on every pass through the system. The moisture-resistant beverage board frame holds its shape in both heating and cooling applications. At a MERV 7 rating, this filter balances effective particle capture with manageable static pressure, making it a practical choice for most forced-air systems. Licensed HVAC technicians and experienced homeowners alike install this filter as part of routine preventive maintenance.

This filter fits systems calling for a nominal 18x25x1 filter size. The actual dimensions are 17.5 inches by 24.5 inches by 0.75 inches, which is standard for this nominal size. It is well-suited for residential split systems, package units, and furnace applications in homes and small commercial spaces. The 4-pack format supports a full year of quarterly filter changes. NORDIC PURE rates this filter as equivalent to MPR 600 on the 3M Filtrete scale, giving technicians a useful cross-reference when working with mixed-brand equipment.

Key Features

• MERV 7 rating captures household dust, mold spores, pollen, and pet dander
• Electrostatically charged, hypoallergenic, and antimicrobial pleated media
• Moisture-resistant beverage board frame resists sagging in humid conditions
• Actual size 17.5 x 24.5 x 0.75 inches fits nominal 18x25x1 filter slots
• Equivalent to MPR 600 for cross-reference with other rating systems
• Made in the USA

Compatibility

Designed as a direct replacement for nominal 18x25x1 air filters in residential and light commercial forced-air furnaces and central air conditioning systems. Always verify the actual filter slot dimensions against the 17.5 x 24.5 x 0.75 inch actual size before installation.

Installation Notes

Power down the furnace or air handler at the disconnect or thermostat before removing the old filter. Note the airflow direction arrow printed on the filter frame and orient the new filter so the arrow points toward the blower or heat exchanger. Filter replacement is a standard maintenance task performed by HVAC technicians and qualified homeowners; no special tools are required. Nordic Pure recommends changing this filter every one to three months depending on system run time, occupancy, and the presence of pets or allergy sufferers.