The air vents on the top of the composter offer unimpeded airflow during the composting of the materials. Depending on the temperature and materials being composted, you could have some finished compost in a few weeks.

Mantis Compact Tumbler Features

• The composter drum is enclosed to eliminate odors and prevent pests from getting in.
• Air vents allow the flow of oxygen into the drum
• Drainage vents allow excess moisture to escape the composter.
• Made of powder-coated steel
• The composter is rust-resistant
• The composter features a removable door for easy loading and unloading.
  

Mantis Compact Tumbler Description

The ComposTumbler was designed for suburban gardeners and smaller yards. The composter barrel will hold up to 22 cubic feet of material, which leaves plenty of room for fruits, vegetables, grass, leaves, and other organic matter. A large door opening and gear-driven handle made it easy to use.

Mantis Back Porch ComposTumbler

$286.57

The Composter from Mantis is the mobile composter that makes compost in as little as 4 to 6 weeks. Developed for urban composting and backyard use.

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05/07/2026 03:44 pm GMT

What we Liked about the Mantis Compact Tumbler

We liked that the composter came with a set of instructions on how to compost. It makes it easier for someone to start composting if they are a beginner. For the most part, the composter is easy to turn. We also liked the money saved when you don’t have to buy commercial compost for your garden or yard.

What We Did Not Like about the Mantis Compact Tumbler

This composter is a good buy, but some people found that it needed two people to put together. As well, there were some reviews that noted the composter rusted and was unusable after five or ten years.

More about this Compact Tumbler

The tumbler drum keeps the compost materials off the ground, so all the nutrients don’t leach into the ground the way they would in an open bin.

The composter is designed to retain maximum heat and moisture, along with airflow, making it faster to have finished compost.

Just add a variety of organic waste materials from the kitchen or the garden.

The tumbler should be turned every day to help break down the material.

Dimensions: 43 inches high by 42 inches wide by 33 inches deep.

The composter weighs 60 pounds when empty.

The composter is made of rust-resistant galvanized steel. The composter is made of rust-resistant galvanized steel.

The green color of the composter allows it to blend better into the landscape.

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Miracle-Gro Small Garden Composter Features

• Small enough for your balcony, porch, patio, or rooftop garden!
• The compost is ready in four to six weeks.
• Save your compostable food scraps and help the environment.
• Compost all year round.
• Durable construction with BPA-free plastic. Garden Composter Description

The Miracle-Gro outdoor compost bin tumbler comes in two sizes: 18.5 or 27.7 gallons. The composter has internal mixing bars to speed up decomposition. The composter is made of durable construction with BPA-free, food-grade, UV-protected plastic. The assembled size is 18.1 inches by 23.6 inches by 33.1 inches.

What we Liked Most about the Miracle-Gro Composter

We like that it is easy to put together and is small enough to fit any garden size. We also like the design of the composter.

What we Did Not Like about this Small Garden Composter

Some people found that compost tea can drain through the air holes on the bottom of the composter. However, this is remedied by adding a tub or bucket to catch the liquid. The compost tea can then be added to your garden beds.

Information Link: Small Compost Bin

More about the Miracle-Gro Small Garden Composter

Now, this small outdoor composter can make compost in any-sized yard or garden.

Turn your kitchen and yard waste into ready-to-use compost in four to six weeks.

Do your part to reduce your carbon footprint with this composter.

You can use this compost bin all year round.

The side locking mechanism makes for easing loading and unloading.

Durable construction makes for a tight seal.

The composter is easy to assemble, and every order includes instructions in three languages.

Miracle-Gro Small Garden Composter Video:

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