Filtrete 17.5x35.5x1 AC Furnace Air Filter MPR 700 - Cleaner Air

Our review of the Filtrete 17.31 x 35.31 x 0.65 in 4-pack finds this MPR 700, MERV 8 pleated filter best for households that want an easy, low-maintenance way to cut common airborne particles. The bottom line: it is a reliable, electrostatically charged 3-month filter that attracts and captures lint, pollen and pet dander while maintaining good airflow for most HVAC systems, making it a practical choice for routine replacement and allergy-conscious homes.

Key Features

• 3-month pleated design: Provides a predictable replacement cadence that helps keep indoor air fresher for up to 90 days when used as recommended.
• MPR 700 / MERV 8 filtration: Captures a meaningful range of particles such as pollen, dust and pet dander while balancing filtration and airflow performance.
• Electrostatic charge: The charged fibers attract and hold smaller particles more effectively than non-electrostatic washable filters.
• 4-pack value: Shipping multiple filters together makes quarterly replacement straightforward and reduces the hassle of frequent purchases.
• Filtrete 3-in-1 technology: Designed to trap unwanted particles while allowing cleaner air to pass through, helping HVAC systems run efficiently.

Who It's For

This filter is well suited to homeowners and renters who change 1 in filters on a schedule and want a step up from basic fiberglass or washable screens, especially in homes with pets or seasonal pollen. People focused on practical air quality improvements will appreciate the balance of particle capture and maintained airflow.

It is not the best choice for those who need medical-grade or HEPA-level filtration for severe respiratory conditions, nor for systems that require thicker filters than 1 in. Buyers who need an unusually sturdy frame or custom dimensions should look elsewhere.

Pros & Cons

Pros

• Effective at capturing lint, pollen and pet dander while maintaining airflow for most systems.
• Electrostatic pleats outperform basic washable and non-electrostatic filters in particle capture.
• Convenient 4-pack supports the recommended 90-day replacement interval for a year of service.

Cons

• Some users report concerns about frame sturdiness and occasional size variation versus the nominal dimensions.

Specifications

Brand	Filtrete
Actual size	17.31 x 35.31 x 0.65 in
Pack quantity	4-pack
Filter rating	MPR 700 (MERV 8)
Filter type	3-month pleated 1 in electrostatic
Primary use	Furnace, air conditioner, HVAC systems

Our Verdict

The Filtrete MPR 700 17.31 x 35.31 x 0.65 in 4-pack is a practical, cost-conscious upgrade over basic washable or fiberglass filters for most homes. It delivers consistent particle capture, easy quarterly replacement and good airflow balance, making it a smart buy for allergy-conscious households that do not require HEPA-level filtration.

Frequently Asked Questions

How often should this filter be changed?
Change the 1 in filter at least every 90 days for optimal performance; Filtrete also supports a 30/60/90 day countdown in their app.

What particles does this filter capture?
This MPR 700 filter is designed to attract and capture lint, pollen, dust and pet dander using electrostatic pleats.

Will it fit my HVAC system?
Measure your filter slot; the actual size is 17.31 x 35.31 x 0.65 in and it is intended for standard 1 in filter housings.