The industrial roof exhaust fan listed here carries material Aluminum Alloy, model number 800021, documented exactly as the manufacturer publishes it. Made by Taizhou Hoterwill Import & Export Co., Ltd. (2 years on the platform, typical reply ≤2h). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Industrial Roof Exhaust Fan
- Model Number: 800021
- Material: Aluminum Alloy
- Warranty: 1 Year
- Place Of Origin: Jiangsu, China
- Application: AIR DIFFUSER
- Feature: Easy Installation, Durable, Adjustable
Technical Specifications
| Application | AIR DIFFUSER |
|---|---|
| Installation | Ceiling |
| Material | Aluminum Alloy |
| Shape | Round |
| Maximum Temperature Rating | standard temperature |
| Bar Spacing | 1/2 in |
| Blade Angle | 45° |
| Feature | Easy Installation, Durable, Adjustable |
| Design Style | Modern |
| Latch Type | Knobs |
| Warranty | 1 Year |
| After-Sale Service | Online Technical Support, Onsite Training |
| Project Solution Capability | total solution for projects |
| Place Of Origin | Jiangsu, China |
| Brand Name | VANORM |
| Model Number | 800021 |
| Color | White |
| Size | 8 inches |
| Used For | celling,floor,wall |
| Selling Units | Single item |
| Single Package Size | 25X25X7 cm |
| Single Gross Weight | 1.0 kg |
Product Details
√ It consists out frame and inner swirl diffusing blades.This type of swirl diffuser is adapted to the HVAC system.
√ It is available to supply cold air horizontally,hot air vertically and normal temperature air in 45° angle. It is special for high floor in public, such as stadium, factory, air port and so on.


item | value |
Material | Aluminum alloy |
Feature | easy installation, Durable, Adjustable |
After-sale Service | Online technical support, Onsite Training |
Project Solution Capability | total solution for projects |
Application | AIR DIFFUSER |
Place of Origin | China,Jiangsu |
Shape | ROUND |
Warranty | 1 Year |
Design Style | Modern |
Brand Name | VANORM |
Maximum Temperature Rating | standard temperature |
Color | White |
Size | 8 inches |
Used for | celling,floor,wall |








Customize products of various lengths
2.The facial dimensions of this product;
4.Any questions you want to know.




Note:In the example above of a 14''X8''


Regarding how to control the direction of airflow


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2.Q: Can we use our own forwarder?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,Express Delivery;
Accepted Payment Currency:USD,HKD,CNY;
Accepted Payment Type: T/T, PayPal, Cash;Language Spoken: English,Chinese
Ordering and Pricing
- Minimum order quantity: 1 set
- Volume pricing:
- 1–49 set: US $9.6 / set
- 50–99 set: US $9.2 / set
- 100+ set: US $8.8 / set
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this industrial roof exhaust fan?
The standard minimum order quantity is 1 set. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Taizhou Hoterwill Import & Export Co., Ltd., based in China. The company 2 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Taizhou Hoterwill Import & Export Co., Ltd. range on HVACR Nexus.
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