Glasfloss ZLP18241 Pleated Air Filter 18x24x1 Merv 10

Product Description

The GLASFLOSS ZLP18241 is a MERV 10 pleated air filter designed for residential and light commercial HVAC systems requiring reliable particulate control in a standard 1-inch filter slot. Measuring 18 inches x 24 inches x 1 inch with 5.2 square feet of media area, this filter uses 100% synthetic fiber extended-surface media arranged in a tapered radial pleat configuration at 14 pleats per lineal foot. Initial resistance is 0.21 inches WC with a final resistance of 1 inch WC. The frame is a 1-piece die-cut, heavy-duty moisture-resistant beverage board incorporating post-consumer recycled material. Galvanized expanded metal backing on the air-exit side is laminated with a thermosetting adhesive to maintain pleat continuity and resist rust and corrosion. Rated to 180 degrees F. Made in the USA.

The ZLP18241 suits a wide range of forced-air applications including residential furnaces, air handlers, and geothermal units. At 300 FPM rated airflow, it balances filtration efficiency with manageable static pressure across typical residential and light commercial systems. The MERV 10 rating captures a meaningful portion of fine dust, pollen, mold spores, and lint, making it suitable for environments where indoor air quality standards or LEED compliance requirements apply. HVAC technicians and facility maintenance personnel commonly specify this filter for routine replacement cycles in standard 1-inch filter tracks.

Key Features

• MERV 10 efficiency rating per ANSI/ASHRAE 52.2
• 5.2 square feet of 100% synthetic fiber extended-surface pleated media
• 14 pleats per lineal foot in a tapered radial configuration for consistent airflow distribution
• Galvanized expanded metal backing laminated to the air-exit side to prevent pleat collapse
• Heavy-duty moisture-resistant beverage board frame with post-consumer recycled content
• Temperature rated to 180 degrees F
• Energy Star rated; made in the USA; compliant with UL 900, ANSI/ASHRAE 52.2, USGBC, LEED, HARDI, and NAFA standards

Compatibility

Designed for use in forced-air HVAC systems, air handlers, and geothermal units requiring an 18 inches x 24 inches x 1 inch pleated filter. Applicable standards include UL 900, ANSI/ASHRAE 52.2, USGBC, LEED, HARDI, and NAFA.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified maintenance personnel. Power down or set the thermostat to the off position before removing the existing filter to prevent unfiltered air from circulating through the system. Confirm airflow direction arrow on the filter frame aligns with system airflow before seating the filter in the track. Inspect the filter slot and frame seal on each replacement to avoid bypass air around the filter media.

Technical Specifications

• Dimensions: 18 inches x 24 inches x 1 inch
• MERV Rating: 10
• Media Area: 5.2 square feet
• Flow Rate: 300 FPM
• Initial Resistance: 0.21 inches WC
• Final Resistance: 1 inch WC
• Pleats: 14 per lineal foot
• Media: 100% synthetic fiber extended surface, pleated
• Frame: 1-piece die-cut, heavy-duty moisture-resistant beverage board
• Backing: Galvanized expanded metal
• Temperature Rating: 180 degrees F
• Application: Geothermal unit, forced-air HVAC, air handler
• Standards: UL 900, ANSI/ASHRAE 52.2, USGBC, LEED, HARDI, NAFA
• Country of Origin: USA

Standard Information

• Brand: GLASFLOSS
• Manufacturer Part Number: ZLP18241