Purolator p312-12x24x1 Disposable Panel Filter Merv 4

Product Description

The PUROLATOR p312-12x24x1 is a disposable synthetic panel air filter rated MERV 4, designed for warm air HVAC systems in residential, commercial, and light industrial applications. Built with progressive-density polyester fiber media and a heat-sealed pinch frame, it delivers uniform airflow and reliable particulate retention across variable temperature and humidity conditions. At 12 inches by 24 inches by 1 inch and weighing 0.25 pounds, this filter is a direct-fit replacement for standard panel filter openings. Initial resistance is 0.07 inches WG and final resistance is 0.5 inches WG, making it well suited for high-velocity systems where pressure drop management matters.

The p312-12x24x1 performs best in environments where large quantities of lint and dust are present. Its rugged polyester construction makes it a widely used choice in the prefilter market for high-velocity HVAC systems. Typical installations include air handlers, furnaces, and fan coil units in residential and light commercial settings. Licensed HVAC technicians and facilities maintenance professionals install this filter as part of routine preventive maintenance schedules.

Key Features

• MERV 4 rated for effective capture of large particulates including lint, dust, and debris
• Progressive-density polyester fiber media for uniform airflow distribution
• Heat-sealed pinch frame construction provides structural integrity under high-velocity airflow
• Low initial resistance of 0.07 inches WG supports energy-efficient system operation
• Disposable design for quick changeout with no cleaning required
• Domestically manufactured

Compatibility

Designed as an OEM-style replacement for standard 12 x 24 x 1 inch panel filter applications in warm air HVAC systems. Well suited for use as a prefilter in high-velocity systems where heavy lint and dust loading is expected.

Installation Notes

Installation should be performed by a qualified HVAC technician. Always shut down the air handling unit and disconnect power before removing or inserting a filter. Confirm airflow direction arrow on the filter frame aligns with system airflow before securing the filter in the rack or slot. Follow local codes and manufacturer service intervals for filter replacement schedules.