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LitterHopper™
As low as
€140
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Say goodbye to another litter box chore. The Litter-Robot 4 LitterHopper handles the task of refilling litter to optimal levels so you don’t have to, whether you’re home or away.
- 90-Day In-Home Trial
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Note: Advertised price includes estimated VAT; actual VAT will be calculated at checkout. Cross-border credit card fee may apply.
The LitterHopper automatically dispenses fresh cat litter into your Litter-Robot 4, ensuring litter is at the optimal level for your cat’s use. Get time back and enjoy added convenience with this hands-free solution to litter refills.
- Automatically dispenses litter into the globe as needed
- Maintains the recommended litter bed level
- Holds up to 3.25 litres of litter
- Compatible with multiple litter types, including clay and silica*
- New bonnet included (Litter-Robot 4 not included)
- Installation required
- *Litter-Robot sold seperately
Specs
- Capacity: 3.25 litres
- Motor Power: 12 volts
- Weight (Empty): 11.8 kg
- Footprint: 56 cm x 73.2 cm
FAQ
How does the LitterHopper™ work?
The Litter-Robot 4 LitterHopper is designed to automatically maintain the optimal Litter-Robot 4 litter level within the globe. The default optimal litter bed level inside Litter-Robot 4 is at or just below the MAX fill line inside the globe. Litter-Robot 4 uses OmniSense® Detection to measure the height of the litter bed level at the end of each clean cycle. If the sensors determine that the litter bed level is below optimal, then the LitterHopper will dispense litter into the globe during the NEXT clean cycle.
Note: You must update your Litter-Robot 4 to the latest firmware version through the Whisker app before installing the LitterHopper. If you do not currently use the Whisker app, please download the app and update your firmware.Why do I need a new bonnet?
The standard Litter-Robot 4 bonnet isn’t designed to equip the LitterHopper. The new bonnet (included in this purchase) is required for the LitterHopper to function.Does the LitterHopper™ work with Litter-Robot 3?
No, the LitterHopper is only compatible with Litter-Robot 4.How do I install the Litter-Robot 4 LitterHopper and Bonnet?
No tools are required: Download the installation guide and watch the installation video to make sure you are willing to install this accessory.What type of cat litter can I use with the LitterHopper?
We recommend using clay-clumping cat litter with Litter-Robot 4, although litter beads and crystals that are small enough to pass through the screen will also work. However, translucent or white-coloured litter (most often seen in crystal litter) may impact the litter level and Drawer Full Indicator (DFI) accuracy.
Learn more about the best litter for Litter-Robot in our dedicated article.
How much cat litter does the LitterHopper hold and dispense?
The LitterHopper holds approximately 3.25 litres of cat litter. The LitterHopper will dispense litter for up to 20 seconds per cycle. If the litter bed doesn't reach the optimal level in one cycle, the LitterHopper will continue to dispense in the next cycle until the optimal level is reached. (Note: The LitterHopper only dispenses litter when the litter level drops below the optimal level, not during every cleaning cycle.)How do I know my LitterHopper™ is calibrated to optimal litter levels?
When you initially enable the LitterHopper, ensure the litter level inside the globe is optimal: just below the MAX fill line. Whatever the litter level is when you enable the LitterHopper will automatically be set as the optimal litter level. This means your LitterHopper will not dispense until the litter reaches below that level.
If you need to reset your optimal litter level, please reference the "Calibrate the optimal litter level" section in the Litter-Robot 4: LitterHopper not dispensing support article.How many kilograms of litter should be added to Litter-Robot 4 with the LitterHopper™?
Will the Whisker app tell me when the LitterHopper is empty?
Yes, the Whisker app will notify you when your LitterHopper is likely empty. The app closely monitors your litter bed level. If it detects a decreasing litter bed level trend over several cleaning cycles, the app will notify you that litter levels are getting low, indicating that the LitterHopper is likely empty. Please note: We are continuing to improve upon this feature; in some cases, the feature may not work as intended.Is the LitterHopper included in my Litter-Robot 4 WhiskerCare™ Warranty?
The LitterHopper automatically includes a 2-year warranty, regardless of whether your Litter-Robot 4 is still under warranty, and is not eligible for coverage under our 4-year extended warranty.Are there any special cleaning instructions?
While cleaning your Litter-Robot 4, be careful that the LitterHopper key (the device used to direct litter from the LitterHopper into Litter-Robot 4) doesn’t fall out. Note that the key is designed to fit loosely in the globe, thus allowing the globe to rotate freely around it. We recommend regularly cleaning the LitterHopper dispensing area with a dry cloth or vacuum to avoid buildup of dust, loose litter, or clumps.Why didn’t the LitterHopper add litter to my globe?
When you initially install the LitterHopper, you’ll need to start with a full bed of litter that is at or just below the MAX fill line. Litter will be added ONLY when needed and only during the NEXT clean cycle. For further troubleshooting, visit our support portal.What do I do with my original Litter-Robot 4 Bonnet?
Feel free to recycle or throw away your original bonnet. (Be sure to follow local regulations.) Or you can store it in the box your LitterHopper arrived in for safekeeping.Is the LitterHopper™ anti-tip guard compatible with the Litter-Robot 4 Carpet Tray?
Yes, they are compatible. The carpet tray includes a support extension for the anti-tip guard.Weight-based ID disclaimer
When Litter-Robot 4 is equipped with the LitterHopper, weight-based ID technology will not function for cats that weigh more than 11.3 kg.Weight-based ID disclaimer
No, the backup battery is not compatible with the LitterHopper.
Your LitterHopper™
purchase includes:
Convenient refills
LitterHopper takes another chore off your list by automatically refilling litter, whether you’re out of town or in the next room.
Optimal litter levels
Get peace of mind knowing your cat has a clean place to go and optimal litter levels every time.
Connects to the app
Use the Whisker app to see the LitterHopper's status and litter-dispensing history.
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Reviews displayed on this website may include reviews placed on other Whisker sites, including Litter-Robot.com and Litterbox.com. We pride ourselves on transparency and non-profanity. All reviews submitted to Litter-Robot.com and Litterbox.com are unedited.
Ask a question.
This depends on the type of litter you're using. For example, with the recommended standard-weight clay-clumping litter, approximately 7.7 kg of litter is used when added to both the Litter-Robot 4 globe (just below the MAX fill line) and the LitterHopper.