4000-00-03 ComposT-Twin
$1,049.99
The Mantis ComposT-Twin composter (4000-00-03) revolutionized the composting process with this large-capacity, dual-bin compost tumbler. The easy-use, high-efficiency unit, has twin chambers!
- Aeration and drainage units on drums and doors: Vented doors let oxygen enter the composter. Allows excess moisture to drain and permits collection of "compost tea". Vented end caps on drums ensure proper air flow and moisture control. Speeds up decomposition and proper drainage.
- Holds 20 bushels of compostable material: ComposT-Twin makes a constant supply of compost. 25-cubic foot capacity (almost 10 bushels in each rotating bin).
- Doors are removable: For easy loading of materials and unloading of finished compost.
- The fully enclosed design keeps rodents and wildlife out, while keeping odors under control. Twin latches on doors ensure contents stay inside the rotating composter while turning.
- Interior mixing "fins": Built-in mixing fins mix materials as the compost tumbler is rotated. Keeps contents from sticking to sides of compost drum.
- Durable, sturdy construction: Drums are rust-resistant galvannealed steel. End caps and divider are BPA-free, food grade plastic. Steel frame.
4000-00-03 ComposT-Twin
Mantis ComposT-Twin
The Mantis ComposT-Twin revolutionizes the composting process with this large-capacity, dual compost tumbler. The easy-use, high-efficiency unit, has twin chambers and holds almost 25 cubic feet of compostable material (10 bushels in each side). An improvement on single-bin composters, this Mantis composter lets compost “cook” in one composting bin while adding more kitchen and yard scraps to the second composting bin, making a constant supply of compost.

4000-00-03 Specifications
| Volume gal (L) | 186 (704) |
|---|---|
| Capacity Cubic Ft. (m3) | 24.8 (0.7) |
| Design | Dual Drum |
| Drum Rotation | Gear-driven handle on frame |
| Drum Height Off the Ground in (cm) | 32 (81.2) |
| Drum Material | Non-toxic powder-coated galvannealed steel, rust-resistant |
| Frame Material | Tubular steel with black powder-coated finish |
| Wheels | 0 |
| Dimensions LxWxH, in (cm) | 41x66x65 (104.1×167.6×165.1) |
| Dry Weight, lbs (kg) | 144 (317.4) |
| Warranty* | 2 years |


Mantis ComposT-Twin Features

Twin Composter Doors and Frame
The ComposT-Twin (4000-00-03) dual-bin composter by Mantis has removable, twin-latch doors for easy loading and unloading of materials. The steel frame holds the composter 32″ off the ground.
- Add on the Sifter Screen (shown above) for easier separation of fine compost particles.
Composter Ventilation and Drainage
Aeration and drainage units are found on the drums and doors. These vented doors let oxygen enter the composter and allows excess moisture to drain. Vented end caps on the drums assure proper airflow and moisture control.


Mixing and Turning in the Composter
ComposT-Twin makes a constant supply of compost. 25-cubic foot capacity in each bin! Built-in mixing fins mix materials as the compost tumbler is rotated. Keeps contents from sticking to sides of compost drum. Turn both drums simultaneously with the crank handle and gear mechanism.
Compare Models
| Product | Compact ComposTumbler | Back Porch Composter | ComposTwin Composter |
|---|---|---|---|
| Model | CT02001 | CT08002 | 4000-00-03 |
| Volume - Gal (L) | 88 (333) | 37 (140) | 187 (704) |
| Drum Design | Single Drum | Single Drum | Dual Drum |
| Drum Rotation | Gear driven handle on frame | Molded Finger Grip | Gear driven handle on frame |
| Drum Material | Non-toxic powder-coated galvannealed steel, rust-resistant | Double-wall, high density polyethylene (HDPE) with insulating air cell | Non-toxic powder-coated galvannealed steel, rust-resistant |
| Frame Material | Tubular steel with black powder-coated finish | Polyester powder-coated black steel tubing | Tubular steel with black powder-coated finish |
| Assembled Dimensions L x W x H, in | 26x31x37 | 33x42x43 | 41x66x65 |
| Drum Height from the Ground | 12 in | 6 in | 32 in |
| Shop | CT02001 Composter | CT08002 Composter | 4000-00-03 Composter |




















