FREE Shipping Over $45*
1 2

General Aire MAC-L Right Angle Air Cleaner

SKU: ga17250  |  Model: 4540
$249.99

Have a question or need a quote? Ask Our Experts

Live Chat | 1 (800) 934-9194 | Request Callback | Email

Manufacturer's Warranty

10-Year Limited Warranty (with registration)

What's In The Box?
  • General Aire MAC-L Right Angle Air Cleaner
  • MERV-11 Filter Cartridge

Info & Guides

Meet the General Aire MAC-L Right Angle Air Cleaner, an inline, whole-house solution engineered to pull dust, pollen, and other airborne irritants out of circulation before they reach your living spaces. 

Designed for homeowners who want set-and-forget protection without sacrificing HVAC efficiency, this right-angle cabinet slips neatly into your return air duct and handles an airflow of up to 2,000 CFM whenever your system runs.

Key Features and Benefits of the MAC-L Right Angle Whole-House Air Cleaner

  • Low-Pressure Drop Design: It’s engineered to handle a robust airflow (up to 2,000 CFM) with minimal strain on your blower, supporting energy-efficient heating and cooling.
  • Right-Angle Cabinet: The convenient cabinet shape easily fits into tight mechanical rooms or basement corners where straight-through filters simply won’t, saving valuable installation space.
  • Galvanized Steel Construction: Resists corrosion, dents, and air leaks for dependable whole-house air purification year after year.
  • Easy Access Door: The front metal panel opens without tools for quick and mess-free filter changes.
  • Opti-Fiber Media: The MERV-11 filter traps 65 percent of common air pollutants as small as 1 micron, including dust, pet dander, and mold spores, keeping your HVAC coil clean and your family breathing pollutant-free air. The filter should be replaced every 6 to 12 months.

Why a Right-Angle Air Cleaner Makes Sense

Many whole-house air filtration systems demand a straight stretch of duct that simply doesn’t exist in compact mechanical rooms. The MAC-L’s 90-degree configuration solves this puzzle by redirecting airflow, allowing installation directly where the return duct drops into the furnace. No extra elbows, transitions, or space-eating adaptations are required to achieve a cleaner airflow path, lower installation costs, and a professional finish with easy service access for future maintenance.

Thanks to its generous 25.75-inch depth and full-height media filter, the MAC-L offers ample surface area for particle capture without limiting airflow. Homeowners gain robust whole-home air purification while contractors appreciate a quick, frustration-free install that doesn’t compromise system performance.

Sylvane's Expert Take

The General Aire MAC-L Right Angle Air Cleaner is an efficient, low-maintenance upgrade for households battling everyday allergens or looking to protect a high-value HVAC system. 

Its space-saving design, durable build, and long-life MERV-11 media deliver strong performance without complicating your ductwork. If you want whole-house air filtration that works quietly in the background and fits where other cabinets can’t, the MAC-L is a smart, reliable choice.

Recommended Accessories

Customer Reviews

  • Money Back

    30-Day Guarantee

  • Free Shipping

    On Orders $45+

  • Live Support

    From Our Experts

  • Business Pros

    Celebrating 25 Years