10 Best Liners and Waste Bags for Automatic Litter Boxes (October 2026)
The best automatic litter box liners and waste bags include the Meowant Litter Box Liners for Meowant boxes, the Neakasa M1 Waste Bags for Neakasa M1, and the PETKIT PuraMax Waste Bags for Pura X and PuraMax.
On this page (4 sections)
The best automatic litter box liners match your machine’s waste drawer. A bag that is too short, wide or loose can bunch during a cycle, while the right fit makes removal and cleanup simpler.
Start with your box’s full model name, then compare the liner’s dimensions and listed compatibility. If you’re still choosing a machine, our automatic litter box buying guide covers the features and setup questions that shape daily care.
Our picks at a glance
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Best for a large Neakasa supplyCheck it - 5
Check it66-Count Automatic Litter Box Bags
Best for mixed open-top models - 6
Check itPETKIT Replacement Waste Bags, 5 Rolls
Best for PuraMax 2 - 7
Check it150-Count Drawstring Litter Box Bags
Best for bulk open-top refills - 8
Check it150 Bags for PURA MAX and ScoopFree Clumping
Best for Pura and ScoopFree Clumping - 9
Check itPetSafe ScoopFree Waste Bin Liners
Best for PetSafe Clumping and SmartSpin - 10
Best for general open-top drawersCheck it
How we chose automatic litter box liners
The strongest choice is the one that fits your specific waste drawer and is easy to remove when full. We compared each option’s model compatibility, dimensions, closure and pack format.
A named fit is easier to confirm than a broad compatibility claim. For multi-model bags, the listed size and exclusions matter as much as the number of liners in the pack.
| Product | Best for | Bag size | Closure | Pack format | Our score |
|---|---|---|---|---|---|
| Meowant Litter Box Liners | Meowant boxes | 46 x 32 cm (18 x 12.6 in) | Double drawcord | Self-contained liners | 8.3 |
| Neakasa M1 Waste Bags, 2 Rolls | Neakasa M1 | 12.9 x 27.1 in | 8.1 | ||
| PETKIT PuraMax Waste Bags, 5 Rolls | Pura X and PuraMax | 5 rolls of 20 | 8.0 | ||
| 120-Count Bags for Neakasa M1 | a large Neakasa supply | 27 x 13 in | 7.8 | ||
| 66-Count Automatic Litter Box Bags | mixed open-top models | 26 x 11.8 in | 7.6 | ||
| PETKIT Replacement Waste Bags, 5 Rolls | PuraMax 2 | 5 rolls of 18 | 7.5 | ||
| 150-Count Drawstring Litter Box Bags | bulk open-top refills | 26 x 11.8 in | 7.4 | ||
| 150 Bags for PURA MAX and ScoopFree Clumping | Pura and ScoopFree Clumping | 22.8 x 11.8 in | 7.4 | ||
| PetSafe ScoopFree Waste Bin Liners | PetSafe Clumping and SmartSpin | 7.3 | |||
| 150-Count Drawstring Bags | general open-top drawers | 26 x 11.8 in | 7.0 |
Best liners and waste bags for each box
These automatic litter box liners are arranged by score, with options for named machines and broader open-top drawers. Check the model before comparing pack counts, since an inexpensive bulk supply has little value if it does not fit.
1. Meowant Litter Box Liners: Best for Meowant boxes
Meowant Litter Box Liners: Best for Meowant boxes
- 46 x 32 cm bags
- Double drawcord closure
- Each liner is self-contained
The drawcord closure and stated bag size make these a practical match for compatible Meowant boxes. Check your drawer dimensions before ordering.
Pros
- Double drawcord helps close a full bag
- Liners pull out individually
- Stated 10 kg maximum load-bearing capacity
Cons
- Size should be checked against your specific box
Meowant liners measure 46 x 32 cm (18 x 12.6 in) and have a double drawcord closure. Each bag is self-contained, so you can pull out one liner without separating it from a perforated strip.
Meowant describes the plastic as puncture resistant and gives a maximum load-bearing capacity of 10 kg. Its recommended replacement interval is every 4 to 5 days, adjusted for the number and size of cats.
Choose these for a compatible Meowant box when you want individual liners and a drawcord for removal. Skip them if your drawer dimensions do not match or your box instructions call for a different bag.
2. Neakasa M1 Waste Bags, 2 Rolls: Best for Neakasa M1
Neakasa M1 Waste Bags, 2 Rolls: Best for Neakasa M1
- 30 bags across 2 rolls
- 12.9 x 27.1 in bag size
- Designed for Neakasa M1
These replacement bags are made for the Neakasa M1 waste receptacle and come on 2 rolls. Neakasa estimates 7–10 days of use per bag for one cat.
Pros
- Model-specific M1 fit
- Roll format
- 30 bags total
Cons
- Designed for Neakasa M1 series
These bags are made for the Neakasa M1 open-top self-cleaning litter box and measure 12.9 x 27.1 in. Two rolls contain 30 bags in total.
Neakasa estimates one bag may last 7–10 days for one cat. Treat that as a planning guide, then use the drawer’s fill level and your machine’s care instructions to decide when to replace it.
Choose this pack if you have an M1 and want its model-specific refill. Skip it for another open-top box unless the maker confirms compatibility and the bag dimensions suit that drawer.
3. PETKIT PuraMax Waste Bags, 5 Rolls: Best for Pura X and PuraMax
PETKIT PuraMax Waste Bags, 5 Rolls: Best for Pura X and PuraMax
- 100 liners across 5 rolls
- Drawstring handles
- Designed for PETKIT Pura X and PuraMax
PETKIT's drawstring bags are sized for Pura X and PuraMax waste drawers. The stated fit excludes Purobot Ultra and Purobot Max Pro.
Pros
- 100 liners in 5 rolls
- Drawstrings for disposal
- Made for named PETKIT models
Cons
- Not for Purobot Ultra or Purobot Max Pro
This pack contains 100 liners across 5 rolls, with 20 bags per roll. The drawstring bags are designed for PETKIT Pura X and PuraMax waste drawers.
The stated fit excludes Purobot Ultra and Purobot Max Pro. PETKIT recommends changing liners twice a week for two average-sized cats, but your drawer’s fill level and use should guide the schedule.
Pick these for a Pura X or PuraMax when you want a larger roll pack. Skip them if you own one of the excluded models or a newer PETKIT box with a different waste system.
4. 120-Count Bags for Neakasa M1: Best for a large Neakasa supply
120-Count Bags for Neakasa M1: Best for a large Neakasa supply
- 120 bags
- 27 x 13 in
- Drawstring closure
This 120-count pack is designed for Neakasa M1 and PetPivot Autoscooper 11/12 boxes. Its drawstring closure and larger pack suit buyers who want fewer restocks.
Pros
- 120 bags in the pack
- Drawstring closure
- Named compatibility with two box lines
Cons
- Check the fit for your exact model
This 120-count pack is designed for Neakasa M1 and PetPivot Autoscooper 11/12 boxes. Each bag measures 27 x 13 in and has a drawstring closure.
The larger count is useful if you want to store a supply and avoid frequent reordering. Check your exact model and drawer shape, since a broad compatibility label does not ensure every version fits.
Choose these for one of the named models when the dimensions match your drawer. Skip them if you prefer refills with a more narrowly defined fit or cannot confirm that your machine is included.
5. 66-Count Automatic Litter Box Bags: Best for mixed open-top models
66-Count Automatic Litter Box Bags: Best for mixed open-top models
- 66 bags
- 26 x 11.8 in
- Designed for several open-top models
These bags name several open-top box models, including Neakasa M1 and Meowant MW-SC02. Confirm your model and drawer shape before choosing a multi-model liner.
Pros
- Individually separated bags
- Drawstring closure
- Names several open-top models
Cons
- Not designed for Litter-Robot 3, 4 or 5
These 26 x 11.8 in bags name several open-top models, including Neakasa M1 and Meowant MW-SC02. The pack contains 66 individually separated bags with drawstring closures.
The stated compatibility excludes Litter-Robot 3, 4 and 5. Since several drawer styles are named, confirm your exact model and compare the bag’s size with the waste compartment.
Choose this pack when your open-top box is named and the dimensions work. Skip it if you have a Litter-Robot or want the confidence of a refill made for only your model.
6. PETKIT Replacement Waste Bags, 5 Rolls: Best for PuraMax 2
PETKIT Replacement Waste Bags, 5 Rolls: Best for PuraMax 2
- 90 liners across 5 rolls
- Drawstring handles
- Designed for PuraMax 2 and PUROBOT Max Pro
These PETKIT bags are made for PuraMax 2 and PUROBOT Max Pro, with a drawstring closure. They are not designed for Purobot Ultra.
Pros
- 90 liners across 5 rolls
- Drawstrings for disposal
- Designed for named PETKIT models
Cons
- Not for Purobot Ultra
PETKIT’s replacement pack contains 90 liners across 5 rolls, with 18 bags on each roll. It is designed for PuraMax 2 and PUROBOT Max Pro, and the bags have drawstring handles.
The unscented HDPE bags are not designed for Purobot Ultra. Check the full model name, since PETKIT has several machines with similar names and different liner requirements.
Pick these for a compatible PuraMax 2 or PUROBOT Max Pro. Skip them if you own a Pura X or earlier PuraMax, which are named with a different PETKIT refill above.
7. 150-Count Drawstring Litter Box Bags: Best for bulk open-top refills
150-Count Drawstring Litter Box Bags: Best for bulk open-top refills
- 150 bags
- 26 x 11.8 in
- Pre-separated drawstring bags
A 150-count supply suits buyers who want a bulk pack for compatible open-top boxes. The stated fit excludes Litter-Robot 3, 4 and 5.
Pros
- Large pack count
- Pre-separated bags
- Drawstring closure
Cons
- Not for Litter-Robot 3, 4 or 5
This KropBom pack contains 150 pre-separated bags measuring 26 x 11.8 in. They have drawstrings and name selected open-top models, including Neakasa, Meowant and Autoscooper boxes.
The stated exclusions are Litter-Robot 3, 4 and 5. The compatibility names cover several product lines, so check the exact model and drawer dimensions before buying.
Pick this option if your open-top box is named and you want a large supply. Skip it if you cannot confirm the fit or prefer a refill designed for one specific machine.
8. 150 Bags for PURA MAX and ScoopFree Clumping: Best for Pura and ScoopFree Clumping
150 Bags for PURA MAX and ScoopFree Clumping: Best for Pura and ScoopFree Clumping
- 150 bags
- 22.8 x 11.8 in stated size
- Drawstring closure
This multi-model pack names PuraMax 2, PuraMax, PuraX and ScoopFree Clumping. Check the bag size and your waste drawer before choosing it.
Pros
- Names several compatible box models
- Drawstring closure
- Bulk pack
Cons
- Confirm model and measurements before ordering
This multi-model pack names PuraMax 2, PuraMax, PuraX and ScoopFree Clumping as compatible. It includes drawstring bags, but its pack details give conflicting counts and dimensions.
One detail says 150 bags, while another says 120. The stated bag size is 22.8 x 11.8 in in one place and 21.65 x 11.81 in elsewhere, so confirm the pack details before ordering.
Choose it if your machine is named and you can verify the size and count you’ll receive. Skip it if you need a clear, consistent specification or have a ScoopFree Crystal box.
9. PetSafe ScoopFree Waste Bin Liners: Best for PetSafe Clumping and SmartSpin
PetSafe ScoopFree Waste Bin Liners: Best for PetSafe Clumping and SmartSpin
- 25 liners
- Designed for ScoopFree Clumping and SmartSpin
- Pull, tie and toss disposal
These purpose-fit liners are for PetSafe ScoopFree Clumping and SmartSpin waste bins. They do not fit the ScoopFree Crystal box.
Pros
- Made for named PetSafe models
- 25 liners per pack
- Helps keep clumping litter residue off the bin
Cons
- Not compatible with ScoopFree Crystal
These 25 waste bin liners fit PetSafe ScoopFree Clumping and SmartSpin bins. Line the bin before use, then pull out, tie and discard the liner when the bin is full.
They do not fit ScoopFree Crystal, which uses a different waste system. Regular liner use helps keep clumping litter residue from soaking into the bin’s plastic.
Choose these for the named Clumping or SmartSpin models. If you have Crystal, use the tray and refill guidance in our PetSafe ScoopFree crystal litter and tray guide.
10. 150-Count Drawstring Bags: Best for general open-top drawers
150-Count Drawstring Bags: Best for general open-top drawers
- 150 bags
- 26 x 11.8 in
- Pre-separated drawstring bags
These bags are intended for many self-cleaning waste drawers under 26 inches long and wide. Check the fit and keep the stated Litter-Robot exclusions in mind.
Pros
- 150 bags in the pack
- Pre-separated bags
- Drawstring closure
Cons
- Not for Litter-Robot 3, 4 or 5
AWoHH’s 150-count pack measures 26 x 11.8 in and uses pre-separated bags with drawstrings. It is intended for many self-cleaning waste drawers with length and width under 26 in.
The bags have double-sealed bottoms, but the compatibility details do not name individual machine models. Confirm the drawer’s dimensions and your box’s instructions before trying a general-fit liner.
Choose these when your open-top drawer fits the stated measurements and you want a bulk pack. Skip them if your machine has a named replacement bag or its drawer is close to the size limit.
How do you choose the right automatic litter box liners?
Choose by exact model first, then check dimensions, closure and pack size. A larger pack is useful only after you know the bag fits your waste drawer without bunching or getting in the way of moving parts.
Which automatic litter box liners fit your model?
Find the full model name in your machine’s instructions or on the box itself. A Neakasa M1, PETKIT PuraMax and PetSafe ScoopFree Clumping use different waste systems, even if their liners look similar.
For a multi-model bag, check that your exact model appears in the compatibility details and that no exclusion applies. If the box has several versions, match the version as well as the brand.
How should you measure a waste drawer?
Measure the drawer where the bag sits, including its usable length and width. Compare those measurements with the bag’s stated dimensions, and allow enough material to reach the edges without pulling tight.
A bag that is too large can fold into the waste area, while one that is too small may not cover the drawer. Follow the machine’s manual if it gives a specific liner size or placement method.
Should you choose drawstring, roll or individual bags?
A drawstring helps close a full bag for carrying and disposal. Rolls keep several liners together, while individually separated bags let you pull one out without tearing a perforation.
Choose based on the way you replace bags and where you store spares. These features affect handling, but they do not make an incompatible size fit your drawer.
How many liners should you keep on hand?
Pack sizes in this roundup range from 25 to 150 bags. Estimate your household’s use from how often you empty the drawer, then choose a count that fits your storage space and restocking habits.
A brand’s suggested interval can help you plan, but the number of cats and the machine’s fill level affect actual use. Replace the bag when the drawer needs emptying or the machine’s instructions call for it.
What should you check before the first cycle?
Install the liner according to your box’s instructions and make sure it sits flat in the waste drawer. Pull the edges into the intended position, keep extra plastic away from moving parts, and confirm the drawer closes fully.
After installation, check that the machine can start a cycle without an obstruction. If the bag slips, wrinkles or interferes with a sensor, remove it and refit it before using the box.
How do you change a full liner cleanly?
Open the waste drawer as the manual directs, then gather the liner without dragging it across the compartment. Use its drawstring or handles to close the opening, or tie it securely if the bag has no closure.
Dispose of the full bag and inspect the drawer for loose litter or residue before adding a replacement. A liner reduces direct contact and can protect the bin from residue, but it does not replace the box’s regular cleaning routine.
What mistakes make liners harder to use?
The most common mistake is choosing by brand family instead of exact model. PETKIT refills in this roundup have different compatibility limits, and PetSafe ScoopFree Crystal does not use the same waste bin liner as Clumping or SmartSpin.
Another mistake is relying on a broad “fits most” claim without measuring. Check exclusions, avoid letting spare plastic hang into the waste path, and replace a damaged or poorly seated bag before the next cycle.
Which automatic litter box liners should you choose?
Choose Meowant for a compatible Meowant box, Neakasa M1 bags for an M1, and the PETKIT refill that matches your exact Pura model. For PetSafe, confirm whether your machine is Clumping, SmartSpin or Crystal before choosing a liner.
For open-top boxes, a multi-model pack can suit you if the exact machine is named and the bag dimensions match. If odor is your concern, read our automatic litter box odor control guide for other ways to manage waste and box care.
Our top 3 picks at a glance
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Frequently asked questions
Do automatic litter boxes need special liners?
Some do, because waste drawer shape and bag size vary by model. Neakasa M1, PETKIT PuraMax and PetSafe ScoopFree Clumping bags name the systems they fit.
For multi-model liners, compare the bag dimensions with your drawer and check model exclusions before ordering.
Can I use regular garbage bags in an automatic litter box?
Only if the bag fits the waste drawer without bunching or blocking parts that move. Check your box manual for liner guidance, then compare the bag's dimensions with the drawer.
A bag made for a different model may be too short, too wide or incompatible even when it looks similar.
How often should I change automatic litter box liners?
Change the bag when the waste drawer is full or your box calls for a replacement. Timing depends on the box, number of cats and how often they use it.
For a routine based on litter and household use, see our guide to how often to change litter in a self-cleaning box.
Do litter box liners help with odor?
A liner can make waste removal easier and help keep residue off the drawer, but it doesn't replace emptying the box. Seal the bag when you remove it and follow the box's cleaning schedule.
For more odor steps, read our guide to automatic litter box odor control.
