15" x 25" x 1" Replacement Air Filter, Pleated, Merv 8

Purolator Hi-E 40 Pleated Air Filter – Technical Product Information

The Purolator Hi-E 40 Series Pleated Air Filter is a medium-efficiency filtration element engineered for commercial and industrial HVAC systems. Constructed with a moisture-resistant beverage board frame and a 100% hydrophobic synthetic media, the Hi-E 40 provides consistent performance in both constant and variable air volume applications. Designed for extended service intervals and compatibility with standard filter racks, this MERV 8-rated filter offers stable differential pressure and reliable particulate removal for professional air handling and mechanical system environments.

Technical Specifications

• Product Code: HE40-15X25X1
• Manufacturer: Purolator
• Series: Hi-E 40
• Model: HE40-STD1
• Nominal Size: 15 x 25 x 1 inch
• Actual Dimensions: 14-1/2" x 24-1/2" x 3/4" (nominal tolerance)
• Media Type: 100% Synthetic, Un-dyed, Hydrophobic
• Media Color: White
• Frame Material: Beverage Board, Moisture Resistant
• Filter Depth: 1 inch
• Initial Resistance: 0.27 in. wg at rated airflow
• Final Recommended Resistance: 1.0 in. wg
• Rated Temperature Limit: 225°F (107°C)
• Performance Rating: MERV 8 per ASHRAE 52.2
• Average Dust Spot Efficiency: 35–40%
• Average Arrestance: Approximately 95%
• Application: Suitable as a primary filter or as a prefilter in multi-stage HVAC filtration systems
• Available Depths: 1", 2", and 4" (various standard face sizes)

Professional Summary

The Purolator Hi-E 40 Series MERV 8 Pleated Filter provides medium-efficiency performance for professional air handling and mechanical environments requiring dependable particulate control and uniform airflow resistance. Constructed with a high-strength beverage board frame and moisture-tolerant synthetic media, the filter maintains stability in high-humidity and elevated-temperature applications. Designed for both stand-alone and prefiltration use, the Hi-E 40 supports consistent system efficiency, extended service life, and compatibility with standard commercial and industrial HVAC housings.