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Oregon® ThatchMax Universal Mower Blade for 21" and 22" Walk-Behind Lawn Mowers

Part# U-21-1R

This product is only available through retailers or servicing dealers.

The Oregon® ThatchMax Universal Mower Blade was designed as a replacement upgrade for walk-behind lawn mowers with 21" and 22" decks. It includes center hole adapters for compatibility with mowers by Toro, Craftsman, Husqvarna, and other major brands. Ideal for routine maintenance and light-to-moderate thatch removal, this multitasking lawn mower blade will save you time by allowing you to dethatch, rake, cut, and mulch, all in a single pass. Dethatching keeps your lawn healthy by breaking up and removing the layer of dead grass, roots, stems, and organic debris known as thatch. Too much thatch can harm your lawn by inhibiting the uptake of water, air, fertilizer, and vital nutrients. ThatchMax uses nylon tines which, once worn down, can be replaced without having to replace the entire mower blade. Backed by a legacy of craftsmanship that began in 1947, Oregon products undergo a rigorous 26‑point certification process to ensure their safety, quality, durability, and performance. WARNING: This product can expose you to Nickel, a chemical known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.

Product Details

  • UNIVERSAL FIT: 20-15/16" blade designed to replace standard OEM blades for 21" and 22" walk-behind lawn mowers; includes adapters for compatibility with most major brands, including Toro, Craftsman, Husqvarna, and many more
  • DETHATCHING BLADE: Multifunctional blade features flexible nylon tines that pull up dead grass and surface debris as you mow, allowing you to dethatch, rake, cut, and mulch in a single pass
  • KEEPS LAWN HEALTHY: Encourages the growth of strong, healthy grass by reducing the buildup of thatch—a layer of dead grass, roots, stems, and organic debris which can block water, air, fertilizer, and nutrients from reaching the soil
  • REPLACEABLE TINES: Less aggressive than metal spring-tine dethatchers, ThatchMax nylon tines are more gentle on healthy grass and once worn down can be replaced without having to replace the entire mower blade
  • OREGON® QUALITY: Since 1947, trusted worldwide for our unparalleled quality and control standards, Oregon® products undergo a rigorous 26-point certification process to meet the highest standards for safety and durability

Specifications, Details & Support

Blades
Blade Width 2.25"
Thickness 0.149
Blade Length 20-15/16|inch[1005]
Outer Hole Diameter 3/8
Center Hole Size Universal Bow Tie
Center-to-Center 1.88
OffSet 3/16
Air Lift 15/16
Blade Material Steel
General
Product UOM Each
Weight (with Packaging) 0.001 Lb
Net Weight Carton 0.0 Lb

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