Inline duct ventilation fan — power source A.C. Source, material Plastic Iron. The complete factory specification follows. Made by Jinan Retek Industries Inc (15 years on the platform, factory-assessed). Quantity and destination market determine the final price — tell us both for a firm quote.
Key Features of This Inline Duct Ventilation Fan
- Power Source: A.C. Source
- Power (W): 26W
- Power: 25~90 W
- Material: Plastic Iron
- Warranty: 1 Year
- Place Of Origin: Shandong, China
Technical Specifications
| Application | Commercial, Hotel, Industrial, Garage, Household, RV |
|---|---|
| Size | 4 Inch |
| Power Source | A.C. Source |
| Noise | ≤ 40 dB |
| Number Of Blades | 6 |
| App-Controlled | No |
| Warranty | 1 Year |
| Private Mold | No |
| Packaging Types | Corrugated Box |
| Operating Language | English |
| Place Of Origin | Shandong, China |
| Brand Name | RETEKOOL |
| Installation | WALL DUCTS MOUNTING |
| Material | Plastic Iron |
| Power (W) | 26W |
| Appliaction | Ventilation |
| Type | Fan |
| Blade | Plastic Iron |
| Insulation | F and B |
| IP | IP42 & IP54 |
| Power | 25~90 W |
| Guarantee | one year |
| Selling Units | Single item |
| Single Package Size | 25X25X15 cm |
| Single Gross Weight | 1.985 kg |
Product Details
C 4 Inch Inline Duct Ventilation Fan 203 CFM with Variable Speed Switch for Grow Tent Air Cooling System
- Powerful Airflow: Delivers high static pressure and strong CFM (Cubic Feet per Minute) to effectively refresh air in grow tents, greenhouses, or workshops.
- Variable Speed Control: Equipped with a stepless speed adjuster, allowing you to fine-tune the airflow and noise level according to your specific needs.
- Quiet & Efficient: The aerodynamically designed centrifugal blades and high-quality motor ensure smooth rotation with minimal vibration and noise.
- Durable Construction: Features a rugged, corrosion-resistant housing (ceramic-coated or high-grade plastic) designed for long-term use in humid environments.
- Easy Installation: Includes a pre-installed mounting bracket and a long power cord for quick and hassle-free setup in any ducting system


| Model | D (mm) | D1 (mm) | L (mm) | L1 (mm) | L2 (mm) | F (mm) | ||||||||||
| GDF100 | 98 | 237 | 204 | 25 | 25 | 42 | ||||||||||
| GDF125 | 122 | 237 | 193 | 25 | 31 | 42 | ||||||||||
| GDF150 | 147 | 278 | 195 | 25 | 25 | 42 | ||||||||||
| GDF160 | 157 | 278 | 195 | 25 | 25 | 42 | ||||||||||
| GDF200 | 197 | 333 | 210 | 25 | 25 | 42 | ||||||||||
| GDF250 | 247 | 333 | 210 | 29 | 29 | 42 | ||||||||||
| GDF300 | 297 | 402 | 270 | 28 | 28 | 42 | ||||||||||
| GDF315 | 315 | 402 | 265 | 30 | 25 | 42 | ||||||||||
| Model | Voltage (V | Frequency (Hz) | Power (W) | Current (A) | Speed (RPM) | Air Flow m³h | Noise dB | Pressure Pa | IPDegree | Weight Kg | ||||||
| GDF100 | 110/120 | 60 | 70 | 0.61 | 2700 | 345 | 49 | 350 | 44 | 3 | ||||||
| GDF125 | 110/120 | 60 | 75 | 0.65 | 2700 | 430 | 49 | 380 | 44 | 3 | ||||||
| GDF150 | 110/120 | 60 | 130 | 1.0 | 2650 | 700 | 50 | 430 | 44 | 4 | ||||||
| GDF160 | 110/120 | 60 | 135 | 1.1 | 2650 | 730 | 50 | 450 | 44 | 4 | ||||||
| GDF200 | 110/120 | 60 | 200 | 1.7 | 2550 | 1150 | 53 | 550 | 44 | 4.5 | ||||||
| GDF250 | 110/120 | 60 | 210 | 1.8 | 2550 | 1200 | 53 | 600 | 44 | 5 | ||||||
| GDF300 | 110/120 | 60 | 235 | 1.95 | 2520 | 1580 | 53 | 750 | 44 | 5.5 | ||||||
| GDF315 | 110/120 | 60 | 250 | 2.0 | 2550 | 1800 | 53 | 790 | 44 | 5.5 | ||||||
Model | Voltage V | Frequency (Hz) | Power (W) | Current (A) | Speed (RPM) | Air Flow m³h | Noise dB | Pressure Pa | IPDegree | Weight Kg | ||||||
| GDF100 | 220/240 | 50 | 60 | 0.26 | 2550 | 300 | 48 | 300 | 44 | 3 | ||||||
| GDF125 | 220/240 | 50 | 62 | 0.27 | 2550 | 370 | 48 | 330 | 44 | 3 | ||||||
| GDF150 | 220/240 | 50 | 100 | 0.47 | 2550 | 620 | 49 | 355 | 44 | 4 | ||||||
| GDF160 | 220/240 | 50 | 105 | 0.48 | 2550 | 660 | 49 | 380 | 44 | 4 | ||||||
| GDF200 | 220/240 | 50 | 150 | 0.7 | 2500 | 1000 | 52 | 430 | 44 | 4.5 | ||||||
| GDF250 | 220/240 | 50 | 160 | 0.71 | 2500 | 1100 | 52 | 490 | 44 | 5 | ||||||
| GDF300 | 220/240 | 50 | 185 | 0.85 | 2450 | 1450 | 53 | 700 | 44 | 5.5 | ||||||
| GDF315 | 220/240 | 50 | 220 | 1.0 | 2450 | 1600 | 53 | 710 | 44 | 5.5 | ||||||
- Hydroponics & Indoor Grow Tents: Regulate temperature and humidity for optimal plant growth.
- HVAC Systems: Boost airflow in long duct runs for heating or cooling.
- Commercial Ventilation: Ideal for workshops, laser engraver smoke exhaust, and laboratory air filtration.
- Home Use: Efficient exhaust for bathrooms, kitchens, and basements.
- Strict Quality Control: Each unit undergoes rigorous testing before shipment to ensure 100% reliability.
- OEM/ODM Support: Custom branding, color, and packaging services available for bulk orders.
- Fast Shipping: Large inventory in stock with global logistics support.
- Professional Service: 24/7 customer support to assist with technical queries and after-sales service.
- Package Includes: 1 x Inline Duct Fan, 1 x Speed Controller (Attached), 1 x Mounting Bracket, 1 x User Manual.
- Lead Time: 3-7 days for sample orders; 15-25 days for bulk production.






Ordering and Pricing
- Minimum order quantity: 100 unit
- Volume pricing:
- 100+ unit: US $35.98 / unit
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this inline duct ventilation fan?
The standard minimum order quantity is 100 unit. 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 Jinan Retek Industries Inc, based in China. The company 15 years as a verified Alibaba.com supplier, Trading Company, passed third-party supplier assessment. Browse the full Jinan Retek Industries Inc range on HVACR Nexus.
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