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

The Purolator MX40-STD1-133-14X14X1 Hi-E 40 Pleated Air Filter is a medium-efficiency filtration element designed for professional HVAC systems requiring consistent particulate removal and airflow performance. Engineered for reliability in commercial, institutional, and light industrial air handling units, this MERV 8-rated filter combines structural integrity, high dust-holding capacity, and uniform pleat geometry. The Hi-E 40 series maintains stable efficiency and pressure drop over extended service intervals, even under high temperature and variable air volume conditions.

Details

• Model Number: MX40-STD1-133-14X14X1
• Manufacturer: Purolator
• Product Type: Hi-E 40 Pleated Air Filter
• Part Number: 1888875
• Nominal Size: 14 inch x 14 inch x 1 inch
• Actual Dimensions: 14-3/4 inch Width x 14-3/4 inch Height x 3/4 inch Depth
• Filter Rating: MERV 8 (per ASHRAE Standard 52.2)
• Temperature Rating: Up to 225 °F
• Media Type: Synthetic, electrostatically charged non-woven fiber
• Frame Material: Moisture-resistant beverage board
• Support Grid: Expanded metal backing bonded to media
• Airflow Direction: Marked on frame for proper installation
• Application: Air handling units, packaged rooftop systems, and variable air volume HVAC applications
• Compliance: UL Classified per UL 900; meets ASHRAE 52.2 efficiency and performance requirements

Professional Specifications

The Purolator Hi-E 40 Pleated Air Filter features a high-strength synthetic media designed for uniform particle capture and consistent airflow performance. The pleated configuration increases effective surface area, improving dust-loading capacity and extending service intervals. The media is supported by an expanded metal grid bonded to a rigid, moisture-resistant frame to maintain structural stability under variable humidity and temperature conditions. Rated for continuous operation up to 225 °F, the filter provides medium-efficiency particulate removal suitable for protecting coils, fans, and other HVAC components from contamination while maintaining system efficiency.

Summary

The Purolator MX40-STD1-133-14X14X1 Hi-E 40 Pleated Air Filter delivers reliable, MERV 8-rated performance for professional HVAC systems. Its durable construction, optimized pleat design, and high-temperature capability ensure consistent air quality, mechanical strength, and long service life in demanding air handling environments.