Best Mantis Compost Tumblers (2026)

The VIVOSUN tumbler has two separate chambers of 18.5 gallons each, letting you fill one side while the other finishes. A rotatable drum aerates the contents as you turn it. The listing describes it as suitable for beginners and experienced gardeners alike.

Having two separate chambers is the key advantage of this design. You can add fresh scraps to one side while the other cures, which avoids the constant restarting a single bin requires. Compared with the larger MAZE tumbler in this guide, it holds less in total, roughly 37 gallons across both sides.

Placement matters, because a full tumbler can be heavy to turn. Fill each side only about two thirds so the drum rotates easily. It is not a Mantis product, so do not expect Mantis parts or service. Place the tumbler in partial sun to keep the contents warm without drying out. Turn it every few days and add dry leaves whenever the contents smell sour or look wet and clumpy. The two halves also make it simpler to move finished compost to the garden bed in smaller, manageable loads. Look for a model with sturdy latches, since weak doors can pop open during a rotation.

The MAZE two stage tumbler is a 65 gallon drum with large double doors and a sturdy frame. The extra capacity suits families who produce a lot of food waste and yard clippings. Its two stage design lets one section finish while another fills.

Larger drums turn more slowly when full, so loading carefully is important. Compared with the VIVOSUN, it holds nearly twice as much material. The frame uses plastic, steel and aluminum parts that resist weather.

Assembly takes time, and the finished unit is bulky. Choose a level spot with room to rotate. It is not a Mantis product, but it covers the same job for a person who wants a high capacity tumbler. Ask a helper to assist with assembly, since the large drum and frame are awkward for one person. Keep a bucket of dry leaves nearby to balance wet kitchen scraps and prevent odor. Over a season, a drum this large can process the scraps from a family kitchen plus regular lawn clippings. Wear gloves when handling finished compost, and sift it before spreading on beds.

The RSI Maze is an outdoor two stage tumbler that requires assembly. It is rust and corrosion resistant, and the listing shows a product weight of 54 pounds. Because the listing details are sparse, check the capacity on the product page before buying.

This model appears closely related to the MAZE 65 gallon unit also in this guide. The two share a name and general design. Rust resistance matters for a unit that sits outdoors through every season.

For older adults, the two stage design means less turning effort per batch and fewer heavy lifts. Plan to assemble it with a helper, since parts can be awkward. This listing is not a Mantis tumbler, so Mantis service does not apply. Verify the capacity and dimensions on the product page before ordering, since listings for this name vary. Add brown material like shredded paper or leaves to keep the batch from turning slimy. Compared with the plastic VIVOSUN drums, a steel based frame generally handles years of weather better. Look for a spot with some afternoon shade so the contents do not bake in summer.

The RSI MCT-MC is a 65 gallon tumbler made from UV resistant high impact plastic. It has adjustable air vents built into the drum and a locking handle to hold the drum in place. A large clearance underneath makes it easy to slide a wheelbarrow or bucket under for unloading.

The ratchet style locking handle keeps the drum from spinning while you load it. Adjustable vents let you control airflow, helping manage moisture and odor. Compared with the VIVOSUN dual chamber model, it is one large drum rather than two smaller ones.

Because a 65 gallon drum is heavy when full, make sure you load it in moderate amounts. Older adults may prefer to stop at half full to keep turning effort reasonable. This is a Maze product rather than a Mantis one. Check that the locking handle engages firmly after every turn, because a loose drum can swing back. Moisten dry batches lightly with a watering can to keep the process moving in hot weather. Compared with the dual chamber VEVOR, you will need to wait for the whole drum to finish before starting a fresh batch. Many owners solve this by keeping a second bin or open pile for fresh scraps.

The VEVOR tumbler has a 53 gallon total capacity split across two chambers, with a heavy duty plastic barrel and a powder coated steel frame. VEVOR says it produces compost in about four to six weeks. Built in adjustable vents keep air flowing.

A wide sliding door makes loading easier than a small hatch. Compared with the MAZE 65 gallon, it holds less but offers two chambers. It sits between the VIVOSUN and the larger MAZE in size.

Compost time depends on a good balance of green and brown material and regular turning. Do not expect results in six weeks if the mix is too wet. This is not a Mantis product, so parts and service come from VEVOR. Stagger the chambers so one fills while the other cures for a few weeks. Chop large scraps small first, since smaller pieces break down far faster than whole peels and stalks. Owners often report that dual chamber drums are easier to manage than one big drum because each side is lighter. Check that the sliding door seals tightly, so rain and pests stay out between uses.