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Knockdown Supply Plenum 90G36H/811 with Top 24.5" x 20" x 36" and Return Air Package 16.5" x 25"

By HVAC Store | SKU: 90G36H/811
No Sales Tax - in most states excluding California
Free Shipping - on items over $500
Satisfaction Guarantee - or return within 30 Days
Most Products In Stock - Call or Text (833) 658-3387 for availability
$517.00 + SHIPPING

Knockdown Supply Plenum with Top - 24.5" x 20" x 36" - D Width

The Knockdown Supply Plenum with Top measures 24.5 inches wide by 20 inches deep by 36 inches high, providing a versatile and customizable solution for HVAC systems. Paired with a Return Air Package measuring 16.5 inches wide by 25 inches high, this setup ensures efficient air distribution and return flow. The knockdown design simplifies transportation and installation, allowing for easy adjustments on-site to fit various air handler, furnace, or evaporator coil configurations. This combination is ideal for optimizing HVAC performance while accommodating multiple brands and system requirements.

  • Dimensions (Assembled): 24.5" W x 20" D x 30" H
  • Compatibility: Designed for use with 24.5" wide furnaces
  • Design: Knock-down design minimizes space and simplifies transportation to the job site
  • Customization: Measure and cut to size using tin snips to match the supply opening of the air handler, furnace, or evaporator coil
  • Versatility: Designed for use with multiple different brands
  • Components: Includes 4 trimmable sides and 1 trimmable top

Return Air Package - 16.5" x 25"

  • Return air plenum with 1" filter rack
  • Shipped knocked down in one carton
  • Included Components:
    • Starting collar
    • 2 x 30" duct sections
    • Return air plenum
    • 1" filter rack
  • Filter Rack Position: Located above the return's elbow
  • Return Duct Size: 25" x 10"

Knockdown Supply Plenum with Top - 24.5" x 20" x 36" - D Width

Brand The Duct Company Model # 90G36H/811
Weight (in lbs)     20 Material High Quality
Height 36" Width 20"
Depth 20"

Return Air Package - 16.5" x 25"

Brand The Duct Company Model # 811
Weight (in lbs)     43 Material 26 Gauge Galvanized Steel
Height 84" Width Duct: 25" Filter: 25"
Depth  Duct: 10" Filter: 16"

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at support@hvacstore.com.

Returns: For returns unrelated to damage, contact us at support@hvacstore.com for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at support@hvacstore.com or call (833) 658-3387.

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very reliable company and great prices

Bought a few units from this company and they were very friendly and easy to work with. Either matched prices or beat the price and had fast shipping also.

Excellent company to purchase from

I wasn’t to sure about if this company could deliver it quickly but it arrived within a week. No issues. I needed this one for parts as my first one that I installed a year ago had the ecm go out on the blower fan. Parts are hard to come by for this Chinese brand. I think the ecm went out due to condensation in the main supply plenum dripping onto fan motor. I do like this ac unit but hope the fan lasts longer than a year. I covered the fan ecm with flex seal tape.

Goodman 5 Ton System

Excellent value, customer sales support (a human called to confirm online order... greatly appreciated!), fast shipping. Very happy customer.

A + Company

Great price, communication and service I will be buying another furnace from them Fantastic !

Sale representative Lopez was very experienced and professional. I would recommend this company to any one and I am looking forward to work with Lopez again.


Knockdown Supply Plenum with Top - 24.5" x 20" x 36" - D Width

The Knockdown Supply Plenum with Top measures 24.5 inches wide by 20 inches deep by 36 inches high, providing a versatile and customizable solution for HVAC systems. Paired with a Return Air Package measuring 16.5 inches wide by 25 inches high, this setup ensures efficient air distribution and return flow. The knockdown design simplifies transportation and installation, allowing for easy adjustments on-site to fit various air handler, furnace, or evaporator coil configurations. This combination is ideal for optimizing HVAC performance while accommodating multiple brands and system requirements.

  • Dimensions (Assembled): 24.5" W x 20" D x 30" H
  • Compatibility: Designed for use with 24.5" wide furnaces
  • Design: Knock-down design minimizes space and simplifies transportation to the job site
  • Customization: Measure and cut to size using tin snips to match the supply opening of the air handler, furnace, or evaporator coil
  • Versatility: Designed for use with multiple different brands
  • Components: Includes 4 trimmable sides and 1 trimmable top

Return Air Package - 16.5" x 25"

  • Return air plenum with 1" filter rack
  • Shipped knocked down in one carton
  • Included Components:
    • Starting collar
    • 2 x 30" duct sections
    • Return air plenum
    • 1" filter rack
  • Filter Rack Position: Located above the return's elbow
  • Return Duct Size: 25" x 10"

Knockdown Supply Plenum with Top - 24.5" x 20" x 36" - D Width

Brand The Duct Company Model # 90G36H/811
Weight (in lbs)     20 Material High Quality
Height 36" Width 20"
Depth 20"

Return Air Package - 16.5" x 25"

Brand The Duct Company Model # 811
Weight (in lbs)     43 Material 26 Gauge Galvanized Steel
Height 84" Width Duct: 25" Filter: 25"
Depth  Duct: 10" Filter: 16"

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at support@hvacstore.com.

Returns: For returns unrelated to damage, contact us at support@hvacstore.com for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at support@hvacstore.com or call (833) 658-3387.

Customer Reviews

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