16" x 25" x 2", Disposable Synthetic Warm Air Panel Filter, Merv 4

Product Overview

The Purolator® P312 Warm Air Filter (Model P312-16X25X2) is a disposable synthetic panel air filter designed for HVAC systems operating in residential, commercial, and light industrial environments. Constructed with progressive-density polyester media and a heat-sealed Monobond™ pinch frame, this filter maintains uniform structural integrity, ensuring reliable particle retention and low resistance airflow across a wide range of service conditions.

Technical Specifications

• Manufacturer: Purolator®
• Model: P312-16X25X2
• Nominal Size: 16 in. x 25 in. x 2 in.
• Filter Type: Disposable Synthetic Panel Filter
• Media Composition: Non-woven polyester fibers bonded in a progressive-density configuration
• Frame Construction: One-piece Monobond™ pinch frame fabricated from post-consumer recycled materials
• Seal Method: Continuous heat and pressure bond securing the media to the frame perimeter to eliminate air bypass
• Binder Type: High tensile strength binder ensuring media adhesion and frame rigidity
• Filtration Characteristics: Interlocking fiber structure forming multiple particulate retention points
• Dust Holding Capacity: High, due to deep fiber density gradient and balanced airflow resistance
• Airflow Resistance: Low static pressure drop for consistent system performance
• Operating Temperature and Humidity Range: Stable performance across variable environmental conditions
• Application Scope: Warm air furnaces, HVAC return air plenums, and general air handling units
• Environmental Consideration: Frame manufactured with post-consumer recycled materials

Performance and Application

The P312 filter is engineered to capture airborne lint, dust, and particulates through bonded polyester fiber media designed for high dust-loading efficiency. The Monobond™ frame design eliminates weak corners and potential leakage points, providing consistent air filtration integrity. Its non-cellulose synthetic media ensures moisture resistance and durability under fluctuating environmental conditions. The P312 series supports stable system airflow while maintaining high particulate holding capacity, reducing service disruptions in continuous-use systems.

Usage Notes

Install the filter with airflow direction matching the arrow indicated on the frame. Inspect during scheduled service intervals and replace when visible loading or airflow restriction occurs. The P312 series is designed as a single-use component; cleaning or reuse is not recommended. Maintain storage and handling in a dry environment to preserve frame stability.

Summary

Purolator® P312-16X25X2 Warm Air Filter provides consistent air filtration performance for professional HVAC applications through bonded polyester media and precision heat-sealed Monobond™ frame construction. Engineered for durability, low airflow resistance, and uniform particulate retention, it delivers dependable service across residential, commercial, and light industrial systems.