Waste King L 8000 vs 9980 

With a good garbage disposal unit in your kitchen, you will never have to get confused with what to do with your waste anymore. Powerful garbage disposal units like Waste King L 8000 vs 9980 are able to deal with any kind of remains that your kitchen may produce. So, what is the difference between these two models?

Despite their similar looks, there are a few things to set Waste King L 8000 and Waste King 9980 apart. Continue reading to learn more about:

  • The dimensions of each garbage disposal unit here
  • The comparison of their build quality
  • Which model that comes with better accessories
  • Which model that is easier to set-up
  • The durability of Waste King L 8000 vs 9980
  • Which Waste King model that is generally more recommended

Design and Build Quality

In terms of design, these two models are indeed very similar. Both are 1.0-HP continuous-feed garbage disposals. The continuous feed design means that the unit can accept waste even when it is already switched on, so that you can put in more waste on the run. This is in contrast with the batch feed design, which will close the feed during the operation and can only accept waste before starting. See also: Waste King 9940 vs 9950

Because of the continuous feed design, both Waste King L 8000 and Waste King 9980 are very convenient and practical to use. You won’t need to collect your kitchen waste in order to deal with them in one go. You can just switch on your unit and put in your kitchen waste while you are cleaning.

Both Waste King L 8000 and Waste King 9980 are pretty large. They have similar dimensions. Each of them measures 8.5 inches wide and 16.167 inches tall. Although these garbage disposals are pretty large, they should be able to fit under most kitchen sinks just fine. The average medium-sized kitchen typically has enough space to keep a garbage disposal like these.

In regards to build quality, Waste King L 8000 vs 9980 are also exceptionally good. The Waste King brand has always been known for their superior build quality. Waste King L8000 and Waste King 9980 are not exceptions. While other models in the market usually come with metallic grinding chambers that often have issues with corrosion, Waste King L 8000 and Waste King 9980 are equipped with durable glass-filled nylon chambers.

As a result, these garbage disposals will never have to deal with rust or corrosion. Their grinding chambers are also very robust, and able to last for a very long time despite frequent use.

Included Accessories

Now, let’s take a look at the included accessories of these garbage disposals. There are a few notable differences here. These differences actually indicate that Waste King L 8000 and Waste King 9980 come with different installation systems.

Inside the box of Waste King L 8000, you can find:

  • the EZ mounting hardware, 
  • the removable splash guard, 
  • the plastic stopper, and 
  • the power cord.

With these tools, you can already install Waste King L 8000 under your kitchen sink right away. The only exception is if you want to connect your dishwasher to the garbage disposal, in which case you need to purchase the adaptor hose and overflow separately.

Inside the box of Waste King 9980, you can find:

  • the 3-bolt mounting hardware, 
  • the plastic stopper, and 
  • the power cord.

The only things that are not included are the adaptor hose and overflow for a dishwasher connection. If you don’t intend to connect your dishwasher, these parts are not necessary.


The primary difference between Waste King L 8000 vs 9980 is the installation system. This is also the reason why Waste King L 8000 is available at a slightly lower price than Waste King 9980, even though their other specs including power, speed, and capacity are similar.

Waste King L 8000 comes with the EZ Mount System, which is particularly beneficial for DIY home users who want to install their garbage disposals by themselves. The reason? The EZ Mount System has been specially designed to allow easy, quick set-up.

Additionally, Waste King L 8000 has a removable splash guard. This is the part that prevents waste from splashing up and making a mess during the grinding and shredding. With a removable splash guard, you can easily clean it or replace it when necessary.

Unfortunately, the EZ Mount System is mainly constructed from aluminum, though the flange is indeed stainless steel. In general, the EZ Mount System is not as durable as the 3-Bolt Mount System, as aluminum is more prone to dent and damage compared to stainless steel.

Waste King 9980, on the other hand, comes with the 3-Bolt Mount System. Compared to the EZ Mount System, this one is relatively more difficult to set up. That doesn’t necessarily mean you can’t do it by yourself; in fact, there are many home users who install their Waste King 9980 units by themselves. You just need to spend a bit more time and effort.

The splash guard on Waste King 9980 is fixed. As the effect, if you want to replace it, you will need to detach the entire garbage disposal first. On the good side, you won’t need to do this frequently. It will take months or years to require a replacement.

The main reason to choose the 3-Bolt Mount System is the durability. It is entirely made from stainless steel. It is much more robust and durable. So, you will have a peace of mind knowing that your garbage disposal won’t need to be replaced for quite a long time.


In terms of power, Waste King L 8000 vs 9980 are similar. Each of them is armed with a 1.0-HP motor that can provide a speed of 2,800 RPM. These garbage disposals are extremely powerful.

If you don’t have any idea how powerful 1.0 HP is, you should know that most other garbage disposals in the market only have 1/3-HP motors. The cousins of these models, Waste King 9940 and Waste King 9950, even have 3/4-HP motors, and they are already capable of cutting and shredding most kinds of kitchen waste.

With 1.0 HP and 2,800 RPM, Waste King L 8000 and Waste King 9980 can easily grind harder objects like chicken bones, watermelon rinds, and corn cobs. This way, you won’t need to separate your waste into groups to be discarded separately.

With either of these models, you can just put everything through your garbage disposal. This is very convenient, and the main reason why you want to have a garbage disposal in the first place.

The other benefit of the great power and high speed is that these units become much more resistant to jamming. They can shred waste into very fine pieces, so they are much less likely to get clogged. They are also equipped with stainless steel swivel impellers to ensure that the shredded pieces can flow out smoothly.


The next thing that you may want to consider when buying a garbage disposal unit is the noise level. You certainly don’t want to wake up the entire family when cleaning your kitchen, and you don’t want to get complaints from your neighbors. So, a quiet unit is preferred.

Although the specs of Waste King L 8000 and Waste King 9980 don’t specifically mention their noise levels, it is mentioned that these models are equipped with the SoundSHIELD sound deadening insulators. The feature is specifically designed to muffle the unit’s sound when working.

When tested, both Waste King L 8000 and Waste King 9980 are indeed very quiet. There is a low hum, but it is not loud enough to disturb your family members or neighbors. The sound is almost unhearable from another room.

Waste King L 8000 and Waste King 9980 are not necessarily the quietest models in the market. There are some Insinkerator models that are quieter. However, for garbage disposals with such great power, the quiet operation of Waste King L 8000 and Waste King 9980 is already very impressive.


Last but not least, let’s take a look at the warranty. It often indicates the company’s confidence in the product’s quality. A good warranty will give you more peace of mind, as it will allow you to get a professional assistance or replacement in case that you encounter issues.

Each of these garbage disposals is backed by a 20-year limited warranty. This is really impressive. The warranty duration is so long that it is almost like the entire lifetime of the product.

However, keep in mind that the warranty is not transferable. In other words, if you sell your garbage disposal unit, the new owner won’t be able to benefit from the warranty.

Waste King L 8000 vs 9980 

- HIGH-SPEED MOTOR: The 1 HP, 2800 RPM (115v) permanent magnet motor is sound-insulated and jams less
- EASY INSTALLATION AND CLEANING: EZ Mount for a quick and easy kitchen sink installation, removable splashguard for easy cleaning
- CONTINUOUS FEED DISPOSAL: Activated by a wall switch, the disposal quickly grinds food waste continuously as it runs
- NOTE FROM THE MANUFACTURER: Customers may receive product with the original brand logo or updated logo and packaging.
- NO ELECTRICAL EXPERTISE NEEDED: Pre-installed power cord, no electrical work required
- DURABILITY: Compact and lightweight garbage disposer with all stainless steel grind components
- CONTINUOUS FEED DISPOSAL: Activated by a wall switch, the disposal quickly grinds food waste continuously as it runs
- NOTE FROM THE MANUFACTURER: Customers may receive product with the original brand logo or updated logo and packaging.


Between these two models, Waste King 9980 is generally more recommended. It comes with the 3-Bolt Mount System, which is more robust and durable. Both garbage disposals are very powerful. They can grind any kind of kitchen waste, and they are very quiet.

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