Octagonal Compost Bin 140 L Dual Chamber Rotating Steel Frame Unit
Composting with Two Chambers
This dual chamber compost tumbler is designed for backyard composting with two separate 70 L chambers, providing a combined 140 L capacity for ongoing compost production. While one chamber receives fresh kitchen scraps and yard waste, the second chamber can remain dedicated to the curing stage. The octagonal polypropylene barrel creates multiple contact points during rotation to help redistribute materials throughout each cycle. Internal fins move and separate contents as the drum turns, while airflow ports positioned around the barrel promote air circulation. A galvanized steel frame supports the barrel on a fixed rotational axis.
Rotation Does the Mixing
Each chamber operates independently, allowing composting tasks to continue without interrupting the material already in progress. Internal fins help reposition organic material while reducing large clumps inside the chamber. Ventilation openings remain exposed throughout rotation, allowing airflow across both compartments. The removable access doors provide separate loading and unloading points, making it simple to manage compost batches throughout the season.

Ready for the Next Batch
The compost tumbler is supported by a galvanized steel frame that maintains barrel alignment during rotation. Removable chamber doors provide direct access for adding compost materials and removing finished compost. Structural fasteners attach the frame and barrel assembly for stationary installation in a garden, patio, or backyard location. With an overall assembly weight of 24 lbs, the unit can be positioned before use and remain in place as part of a regular composting routine.
Product Benefits:
- Dual Chamber Design: Two separate 70 L chambers allow one batch to cure while another receives fresh material.
- 140 L Combined Capacity: Provides space for kitchen scraps, leaves, grass clippings, and yard waste.
- Rotating Barrel System: Mixing materials without manual turning inside the chamber.
- Airflow Vent Layout: Ventilation ports allow air exchange throughout the barrel during rotation cycles.
- Internal Mixing Fins: Molded fins help separate and reposition compost materials as the barrel turns.
Specifications:
- Capacity: Two 70 L chambers; 140 L combined
- Barrel Shape: Octagonal rotating drum
- Overall Dimensions: 36 x 30 x 28 in
- Rotation Method: Manual external handle
- Internal Features: Molded mixing fins
- Material: Polypropylene resin with galvanized steel frame
- Ventilation: Integrated airflow ports on chamber walls
- Access: Removable loading and unloading doors for each chamber
- Installation: Freestanding stationary outdoor assembly
- Daily Order Cut-Off: Orders placed before 6:00 PM (GMT-5) on business days enter processing the same day. Orders received after this time begin processing on the next business day.
- Preparation Time: Most orders are prepared and packed within 1–2 business days (Monday through Friday).
- Estimated Delivery: Once shipped, orders generally arrive within 3–5 business days (Monday through Friday).
- Shipping Cost: We provide free shipping on every order delivered within the United States.
- Return Eligibility: Requests must be submitted within 30 days after your order is delivered.
- Restocking Charges: None.
- Refund Processing: Approved refunds are issued within 2 business days.
- Return Shipping: The customer is responsible for the cost of sending the item back.