4000-00-03 ComposT-Twin

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$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!

Availability: Out of stock SKU: 4000-00-03
  • 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.

Mantis 4000-00-03 compost-twin by schiller grounds care

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 4000-00-03 compost-twin by schiller grounds care
Mantis 4000-00-03 compost-twin by schiller grounds care

Mantis ComposT-Twin Features

Mantis 4000-00-03 compost-twin unloading by schiller grounds care

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.

Mantis 4000-00-03 compost-twin by schiller grounds care
Mantis 4000-00-03 compost-twin turning handle by schiller grounds care

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

ProductCompact ComposTumblerBack Porch ComposterComposTwin Composter
ModelCT02001CT080024000-00-03
Volume - Gal (L)88 (333)37 (140)187 (704)
Drum DesignSingle DrumSingle DrumDual Drum
Drum RotationGear driven handle on frameMolded Finger GripGear driven handle on frame
Drum MaterialNon-toxic powder-coated galvannealed steel, rust-resistantDouble-wall, high density polyethylene (HDPE) with insulating air cellNon-toxic powder-coated galvannealed steel, rust-resistant
Frame MaterialTubular steel with black powder-coated finishPolyester powder-coated black steel tubingTubular steel with black powder-coated finish
Assembled Dimensions L x W x H, in26x31x3733x42x4341x66x65
Drum Height from the Ground12 in6 in32 in
ShopCT02001 ComposterCT08002 Composter4000-00-03 Composter

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