Perfect Grind®
Waste Disposers

5 Powerful Models to Choose From, Industry-Leading Warranties

Our MT555, MT666, and MT888 Perfect Grind® Waste Disposer models all come with our Lifetime Warranty!

Permanent Magnet DC Motor
and Grinding System

  • 30% More Torque than Other Brands Provides More Grinding Power
  • Higher RPM Than AC Motors Produces More Torque
  • Cast Stainless Steel Impellers on All Models
  • 190° Dual Swivel Anti-Jam impellers Never Jam and will not Break
  • 80% Higher Efficiency, Saving Time, Water, and Electricity
  • Stainless Steel, High Precision, High Speed Dynamic Balanced Grinding System Quietest Permanent Magnet Motor With Full Sound-Eliminating Insulation
  • Technology Bio Guard Antimicrobial for Odor Protection
  • Not Sold in Big Box Stores
  • Factory Installed Power Cord Included

The Perfect Grinding System

Perfect Grind System can efficiently grind the toughest bones faster and finer than any other brand food waste disposer in the market and is safe for any properly sized septic system. Wear resistant and corrosion proof…makes our disposer the plumber’s choice.

  • Stainless Steel, High Precision, High Speed Dynamic Balanced Grinding Turntable with Dual Swivel Anti-Jam Impellers that Will Never Jam and Will Not Break
  • Stainless Steel Grinding Rings
  • Specially Designed LargeOpening, Round Holes, and Arch Cutters
  • Corrosion Proof Stainless Steel Grind Components

Corrosion Proof Grinding Chamber

Grind chamber is constructed with the proven durability of glass lled nylon for lasting performance and is treated with BioGuard Antimicrobial Odor Protection.

BioGuard Protection

Our garbage disposers use BioGuard Antimicrobial treatments for odor protection. Disposers can start to stink as food and beverage flow through it over time. Using BioGuard technology to fight the bacteria that cause odors, we keep your disposer smelling clean.

3-Bolt Mount Models


1-1/4 HP | Lifetime Warranty


3/4 HP | Lifetime Warranty


5/8 HP | Lifetime Warranty


1/2 HP | 3 Year Limited Warranty


1/3 HP | 3 Year Limited Warranty

Perfect Grind® Waste Disposer – Installation Video

Welcome to the Mountain Plumbing Products installation video for the Perfect Grind® Waste Disposer. For this video demonstration we will be using the 3/4 horsepower MT-666 model, but the process will be more or less the same no matter which model you choose. We will demonstrate how this unit is attached to the bottom of a kitchen sink with all proper connections to supply lines and drains.

Perfect Grind® Comparison Sheet

Click the button below to download our informational sheet comparing the Perfect Grind® Waste Disposer to a leading competitor in the industry. Discover the multiple features that outperform the competition and come with a Lifetime Warranty!

View All Perfect Grind® Waste Disposers and Accessories

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