Glasfloss ZLP16251 Pleated Air Filter 16x25x1 Merv 10

Product Description

The GLASFLOSS ZLP16251 is a MERV 10 pleated air filter designed for residential and commercial HVAC applications where reliable particulate capture and low pressure drop are required. Sized at 16 inches x 25 inches x 1 inch, it uses 100% synthetic fiber extended-surface media arranged in a tapered radial pleat configuration at 14 pleats per lineal foot, delivering 4.9 square feet of effective media area. Initial resistance is 0.21 inches WC and final resistance is 1 inch WC at a rated face velocity of 300 FPM. A galvanized expanded metal backing laminated to the air-exit side holds pleat geometry stable throughout the service life. Licensed HVAC technicians and mechanical contractors are the typical installers.

The ZLP16251 is suited for forced-air systems in residential, light commercial, and geothermal unit applications. Its synthetic media and moisture-resistant frame construction make it appropriate for environments with moderate humidity exposure. The filter meets ANSI/ASHRAE 52.2 efficiency standards and carries UL 900 listing, making it acceptable on projects requiring compliance with USGBC LEED, HARDI, or NAFA guidelines. It is manufactured in the USA and is rated for continuous operation up to 180 degrees F.

Key Features

• MERV 10 efficiency per ANSI/ASHRAE 52.2 for effective capture of dust, pollen, mold spores, and fine particulates
• 100% synthetic fiber extended-surface media in tapered radial pleat configuration — 14 pleats per lineal foot
• Galvanized expanded metal backing bonded to air-exit side resists rust, corrosion, and pleat collapse
• Heavy-duty, moisture-resistant beverage board frame using post-consumer recycled content — 1-piece die-cut construction
• Low initial resistance of 0.21 inches WC supports system airflow efficiency
• Energy Star rated; compliant with UL 900, ANSI/ASHRAE 52.2, USGBC, LEED, HARDI, and NAFA standards
• Made in the USA

Compatibility

Designed as a direct-fit replacement for standard 16 x 25 x 1 inch filter slots in forced-air HVAC systems, including geothermal units, residential air handlers, and light commercial fan-coil applications where a MERV 10 pleated filter is specified.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified mechanical contractor. Always shut down the air handling unit and set the thermostat to the off position before removing the existing filter. Confirm airflow direction arrow on the filter frame aligns with system airflow toward the blower. Verify filter slot dimensions match 16 x 25 x 1 inch before installation to ensure a proper seal and prevent bypass.

Technical Specifications

• Dimensions: 16 inches x 25 inches x 1 inch
• MERV Rating: 10
• Media Area: 4.9 square feet
• Face Velocity: 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 systems
• Certifications: UL 900, ANSI/ASHRAE 52.2, USGBC, LEED, HARDI, NAFA, Energy Star
• Country of Origin: USA

Standard Information

• Brand: GLASFLOSS
• Manufacturer Part Number: ZLP16251