3M Company 701-4 Electrostatic Air Filter 700 Mpr 16x25x1

Product Description

The 3M COMPANY 701-4 is an electrostatic pleated air filter rated at 700 MPR, designed to capture airborne particles as air passes through a forced-air HVAC system. Sold as a 4-pack, each filter measures 16 inches by 25 inches by 1 inch and fits standard 1-inch filter slots in residential furnaces and air handlers. The 700 MPR rating positions this filter above basic fiberglass options, providing improved capture of dust, lint, and larger airborne particles without the high static pressure drop associated with higher-MERV filters. HVAC technicians and property maintenance professionals commonly stock this size for routine filter replacements.

This filter is intended for use in residential forced-air heating and cooling systems with standard 1-inch filter tracks. Typical installations include upflow, downflow, and horizontal gas or electric furnaces, as well as fan coil units and air handlers that accept a 16x25x1 filter. The 4-pack format supports scheduled maintenance intervals, reducing the number of separate purchase events for high-use installations or multi-unit residential properties.

Key Features

• 700 MPR electrostatic filtration captures dust, lint, and larger airborne particles
• Standard 1-inch depth fits the most common residential filter slot configuration
• 16 x 25 x 1 inch nominal size covers a widely used filter opening
• Sold as a 4-pack for convenient multi-change stocking
• Pleated design provides increased surface area compared to flat fiberglass filters

Compatibility

Designed as a replacement electrostatic air filter for residential forced-air HVAC systems requiring a 16x25x1 inch, 1-inch-depth filter with a nominal 700 MPR performance rating.

Installation Notes

Filter installation should be performed by a qualified HVAC technician or a knowledgeable property maintenance professional. Power down or set the thermostat fan to the off position before opening the filter compartment. Install with the airflow arrow on the filter frame pointing toward the blower. Filters at this MPR rating should be inspected regularly and replaced per the system manufacturer's recommended maintenance schedule to avoid restriction-related airflow issues.

Technical Specifications

• MPR Rating: 700
• Filter Dimensions: 16 x 25 x 1 inches
• Package Quantity: 4 per package
• Unit of Measure: EA
• Weight: 4.15 pounds

Standard Information

• Brand: 3M COMPANY
• Manufacturer Part Number: 701-4