woman and cat with Litter-Robot 4 bag waste drawer liner
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Litter-Robot Bags: What Should You Use?

Est. read time: 5 min.

Litter-Robot is the highest-rated self-cleaning litter box on the market because it is so good at what it does: automatically cleaning your cat’s waste so that it is out of sight (and out of smelling range). But what about when the waste drawer gets full? That’s where Litter-Robot bags come into play. Which Litter-Robot bags are best and why do we recommend custom-fit Litter-Robot liners? Keep reading to find out.

Reminder: How Litter-Robot works

When your cat exits Litter-Robot, a timer counts down, allowing the litter to clump before a clean cycle begins. Litter-Robot automatically separates your cat’s waste from the clean litter, depositing the clumps into a waste drawer below the unit. 

The app or the unit control panel will indicate when the waste drawer is full. At that time, you just empty the drawer, replace the liner, and press the Reset button. It’s as easy as taking out the trash!

Litter-Robot 3 Connect waste drawer liner

Are Litter-Robot bags required?

Although not required for the unit to function, it is highly recommended that you protect the Litter-Robot waste drawer from the deposited cat poop and urine clumps with a bag or liner. Not only will this make emptying the waste drawer a breeze, it’ll drastically cut down on odors and bacteria growth that result from the drawer coming in contact with waste.  

Why custom-fit waste drawer liners are the best Litter-Robot bags

Litter-Robot waste drawer liner roll

The best Litter-Robot bags for the waste drawer are our custom-fit waste drawer liners. Our waste drawer liners fit perfectly in the waste drawer of any Litter-Robot model. These waste bags include 9-11 gallons of usable capacity.

Wondering what these Litter-Robot bags are made of? The liners are constructed as follows: 69.75% linear low-density polyethylene, 25% high-density polyethylene, 1.25% biodegradable additive, 2% slip additive, and 2% anti-block additive.

Does Litter-Robot come with bags?

The Litter-Robot arrives with three of our custom-fit waste drawer liners. You can order more and subscribe to packs of 25, 50, or 100 Litter-Robot liners with monthly, bimonthly, or quarterly delivery options.

Alternative Litter-Robot bags

Our custom-fit Litter-Robot liners are not required for the waste drawer. You can also use 10- to 13-gallon kitchen trash bags or large plastic grocery bags. As long as it fits, you can use it! This is one advantage of using Litter-Robot as compared to other self-cleaning litter boxes on the market, which may require you to purchase special accessories.

How do you install Litter-Robot bags?

It’s easy! For Litter-Robot 3 (with or without Connect), simply pull out the waste drawer, unhook the edges of the liner, and dispose. Then, install a new waste drawer liner or trash bag by rolling the edges a few times and pushing them into the four tabs (keeping the bag taut at the back). View the Litter-Robot 3 Waste Drawer Liner Installation Video.

For Litter-Robot 4, pull out the drawer and dispose of the soiled liner. Open a new waste drawer liner or trash bag and wrap the edges over the rim of the waste drawer. Push the remainder of the bag into the bottom of the waste drawer. Check out the Litter-Robot 4 Waste Drawer Liner Installation Guide.

Tip: Make sure the bag does not come up past the top of the sides of the waste drawer. 

Other custom-fit accessories for Litter-Robot

When you see how easy it is to use Litter-Robot liners, you’ll want to upgrade the litter box experience with other custom-fit accessories, too! 


Orange tabby cat standing on Litter-Robot ramp

The Litter-Robot 3 Ramp and Litter-Robot 4 Ramp are designed to fit in front of the unit. The ramp provides a gentle walkway for your cat to enter and exit the Litter-Robot, while reducing litter tracking out of the box.


Siberian cat stepping over Litter-Robot fence

A fence comes standard with Litter-Robot 4, but you can also purchase a Litter-Robot 3 Fence that snaps on to the entrance of the Litter-Robot globe to promote your cat's full entry. The fence acts as a barrier to contain kicked-up litter and helps prevent those half-in, half-out messes. Plus, the Litter-Robot 3 Fence comes in four colors!

Carbon filters

Litter-Robot carbon filter inside waste drawer

Litter-Robot comes equipped with a carbon filter for absorbing odors in the waste drawer. For optimal odor absorption, we recommend changing the carbon filter every month. Autoship and save when you subscribe to replacement Litter-Robot 3 Carbon Filters or Litter-Robot 4 Carbon Filters.


Litter-Robot 4 with OdorTrap

Eliminate litter box odors using natural chemistry with OdorTrap™. OdorTrap™ uses a blend of plant-based oils to destroy litter box odors. Simply place OdorTrap™ Packs in your Litter-Robot 4 filter pocket (see installation guide) or Litter-Robot 3 waste drawer near the carbon filter. We recommend replacing one pack every two weeks or two packs every month. 

You can’t go wrong with custom-fit waste drawer liners. But you also have flexible options when it comes to a Litter-Robot bags alternative! Either way, you’ll never have to scoop cat poop again. Cleaning the litter box is as easy as taking out the trash.

Siberian cat stepping over Litter-Robot fence - what Litter-Robot bags should you use?