KRAUS WasteGuard KWD100-100MBL, 1 HP Garbage Disposal Review
If you’re looking for a garbage disposal that delivers top-tier power without making your kitchen sound like a construction zone, the KRAUS WasteGuard 1 HP stands out as a serious contender. With a high-speed 3800 RPM MagnaGrind™ motor, full stainless-steel grinding components, and QuietStorm™ soundproofing, it blends performance, silence, and easy DIY installation into a premium-grade package.
This disposal is built for busy, modern kitchens—where daily cooking, larger meal prep, and efficient cleanup demand reliable grinding power. In this review, we’ll break down its design, performance, pros and cons, and see how it compares against other leading 1 HP garbage disposals.
- 1 HP MagnaGrind Motor – 3800 RPM for instant grinding power.
- QuietStorm Soundproofing with anti-vibration assembly.
- Stainless-steel grind System for long-term durability.
- EZLock Quick-Connect Mount – no plumber’s putty needed.
- Full Installation Kit Included – power cord is pre-installed.
- Motor-Saving Shut-Off with easy reset button.
- Continuous Feed Design – great for large amounts of waste.
- Offers a generous five-year warranty, providing peace of mind.
KRAUS WasteGuard KWD100-100MBL, 1 HP Garbage Disposal Specifications
| Specification | Details |
|---|---|
| Brand | KRAUS |
| Model Number | KWD100-33MBL |
| Series / Pattern | WasteGuard 1/3 HP Ultra-Quiet |
| Horsepower (HP) | 1/3 HP |
| Motor Type | Permanent-Magnet High-Speed Motor |
| Motor Speed | Up to 3,800 RPM |
| Voltage | 120 Volts |
| Feed Type | Continuous Feed – Wall Switch or Air Switch Activated |
| Material (Housing) | ABS / Plastic |
| Grinding Components | Solid Stainless Steel |
| Color | Matte Black |
| Style | Quick-Connect, Plug-In |
| Dimensions | 5.25″ (L) × 8.75″ (W) × 13.88″ (H) |
| Grinding Chamber Size | Approx. 27 oz |
| Item Weight | ~10.2 lbs |
| Mount Type | EZLock Quick-Connect (Standard 3½″ Drain Opening) |
| Drain Connection | 1½″ Drain Connection |
| Dishwasher Connection | Yes – Optional Dishwasher Connector Included |
| Power Source | Pre-Installed Power Cord (Plug-In) |
| Included Components | Disposal Unit, Power Cord, Flange, Drain & Dishwasher Connectors, Stopper/Plunger |
| Septic Safe | Yes – When Used per Manufacturer Guidelines |
| Batteries Required | No |
| Warranty | 5-Year Warranty |
KRAUS WasteGuard KWD100-100MBL, 1 HP Garbage Disposal Key Features
Design & Build Quality
KRAUS has clearly aimed for both durability and practicality with the WasteGuard 1 HP. The disposal features stainless-steel grinding components housed in a corrosion-resistant ABS body, which helps reduce vibration while keeping the overall weight manageable. The matte-black finish and stainless-steel flange give it a modern, premium appearance—even though it’s hidden beneath the sink. Unlike bulky commercial units, this model fits comfortably in most standard cabinets without crowding plumbing lines or storage space.
The build quality is further enhanced by its spacious 40 oz grinding chamber, designed to handle meal prep waste and post-dinner cleanup with ease. It’s ideal for busy kitchens, larger families, or anyone who cooks often and needs a disposal that won’t struggle under pressure. Despite being a full 1 HP unit, it weighs less than 10 lbs, making it surprisingly lightweight for its horsepower class. Overall, it feels thoughtfully engineered for long-term daily use.
Grinding Performance
At the heart of the WasteGuard is a high-speed MagnaGrind permanent-magnet motor that delivers up to 3,800 RPM—far faster than most traditional 1 HP induction motors. The speed allows food waste to be broken down into finer particles, which helps prevent pipe buildup and makes flushing easier, especially with cold water running. Everyday scraps like vegetable peels, plate leftovers, soft bones (in moderation), and fibrous waste are processed quickly and efficiently.
The instant torque provided by the permanent-magnet motor ensures there’s no lag when the unit starts—grinding begins immediately. Even during prolonged use or multiple back-to-back grinding cycles, the disposal remains responsive and consistent. That makes it a great fit for active kitchens where meal prep and clean-up happen frequently. It feels controlled, powerful, and dependable for daily use.
Noise & Vibration
Noise reduction is one area where this model truly stands out. Its QuietStorm™ sound insulation and anti-vibration mounting dramatically reduce the harsh grinding noise often associated with high-powered disposals. You can comfortably hold a conversation nearby, and the sink remains stable without shaking or rattling. This makes it an excellent choice for modern, open-concept kitchen layouts where noise travels easily.
The overall noise profile feels composed rather than disruptive. Even when processing more stubborn scraps, the unit maintains smooth operation without sudden spikes or loud grinding bursts. Compared to most 1 HP disposals in its class, the WasteGuard offers noticeably quieter performance—especially appreciated in homes where cooking and socializing often happen at the same time.
Installation & Ease of Use
KRAUS designed this model with DIY convenience at the forefront. The EZLock twist-and-lock mounting system means no plumber’s putty or complex wiring is needed, and the power cord comes pre-installed right out of the box. The assembly includes everything needed for setup: drain connector, dishwasher connector, rubber gaskets, mounting flange, sink stopper, and plunger. For users replacing an old disposal, the process is even faster and can typically be completed in under an hour with basic tools.
The disposal is compatible with standard 3½″ sink drain openings, making it a nearly universal fit for most U.S. kitchens. The compact form factor makes alignment and mounting easier, even in tight cabinet spaces. Whether you’re installing it for the first time or upgrading an older unit, the overall setup feels straightforward and beginner-friendly—an excellent advantage compared to bulkier professional-grade models.
Safety & Everyday Use
The WasteGuard includes several smart safety features that protect both the motor and your plumbing. Its automatic shut-off system instantly stops power when a jam is detected, helping prevent costly damage. Once the blockage is cleared, the reset button restores full functionality in seconds. The extended tailpiece also acts as a safe plunger, guiding scraps into the chamber without pushing them by hand.
As a continuous-feed disposal, it allows steady grinding with the water running—ideal for routine cleanup after meals. It’s also septic-safe when used according to manufacturer guidelines, making it a practical solution for households looking to reduce landfill waste. For everyday use, the unit combines power, safety, and practicality with impressive balance.
Warranty & Value
KRAUS supports this model with a 5-year limited warranty, placing it on par with well-established premium competitors. Considering the motor strength, stainless-steel internals, soundproofing design, and included full installation kit—it delivers strong value for its price range. It feels like a premium mid-range unit, offering features often found in higher-priced models.
Ultimately, the WasteGuard 1 HP is built for users who prioritize quiet performance, high-speed grinding, and hassle-free installation. It delivers dependable power without climbing into luxury pricing—making it one of the strongest value propositions in the 1 HP category. For modern households, frequent cooks, or anyone replacing a loud outdated disposal, it’s a smart long-term investment.
KRAUS WasteGuard KWD100-100MBL, 1 HP Pros and Cons
Pros
Cons
KRAUS WasteGuard KWD100-100MBL, 1 HP Vs Top Competitors
| Feature | KRAUS WasteGuard 1 HP | InSinkErator Evolution 1000 | Waste King 8000 |
|---|---|---|---|
| Horsepower | 1 HP | 1 HP | 1 HP |
| Motor Speed | 3800 RPM | 1725 RPM | 2800 RPM |
| Motor Type | Permanent-Magnet | Induction | Permanent-Magnet |
| Noise Level | Ultra-Quiet (QuietStorm™ Insulated) | SoundSeal Technology | Moderate |
| Grinding Chamber | 40 oz | ~34 oz | 36 oz |
| Mount Type | EZLock Quick-Connect | Quick Lock | EZ-Mount |
| Power Cord | Included | Sold Separately | Included |
| Build Material | Stainless Steel + ABS | Stainless Steel | Stainless / Plastic |
| Best For | Quiet Power & DIY Installation | Premium Features & Tech | Budget-Friendly 1 HP Option |
Conclusion
The KRAUS WasteGuard 1 HP is an impressive blend of power, quiet operation, and DIY installation convenience. It’s built for households that cook frequently and want a strong, modern, and low-noise upgrade to their kitchen cleanup routine.
If you’re upgrading from a basic or builder-grade disposal—or simply want reliable grinding without excessive noise—this model is a smart, well-rounded investment that brings a premium feel without overspending.
Final Verdict:
👉 A powerful, quiet, and highly practical 1 HP garbage disposal—ideal for busy kitchens that want both performance and peace.
The Author
I’m Muhammad Nabeel Dar, an employee in waste management and the owner of Garbage Waste Disposal with more than four years of experience helping people to control waste and garbage disposals are the best tools to control it. Read more
