


The Air circulation cover fit with 4″ 5″ 6″ PVC Pipe.

Stainless Steel Exhaust Vent Cap — Product Overview
This stainless-steel exhaust vent cap is installed at the exterior end of a building’s ventilation duct system, serving as the protective outlet for indoor air flowing to the outside.
The housing is made of corrosion-resistant stainless steel, designed to withstand harsh outdoor environments including sun exposure, rain, humidity, and coastal climates.
The forward-facing hood and integrated mesh screen effectively prevent insects, birds, small animals, leaves, and debris from entering the duct, ensuring smooth airflow and preventing:
- Ventilation blockage
- Airflow backdraft
- Moisture buildup
- Odor return
- Contamination inside the duct
Applications
This exhaust vent cap is widely used in residential, commercial, and industrial buildings, including:
🔹 Kitchen Hood Exhaust
Prevents birds and debris from entering the duct and keeps grease exhaust flowing smoothly.
🔹 Bathroom Ventilation
Improves humidity removal and prevents insects or rainwater from entering.
🔹 Electrical / Mechanical Rooms
Enhances air circulation to avoid overheating in transformer rooms and equipment areas.
🔹 Ventilation Ducts in Apartment & Office Buildings
Commonly installed across building facades as part of large-scale centralized exhaust systems.
Key Features
✔ Durable Stainless-Steel Construction
Weather-resistant, corrosion-resistant, suitable for long-term outdoor installation.
✔ Protective Hood Design
Blocks rainwater, birds, insects, and small animals from entering the ventilation system.
✔ Stainless-Steel Mesh Screen
Provides an additional layer of protection while maintaining excellent airflow efficiency.
✔ Versatile Installation Compatibility
Suitable for PVC ducts, stainless-steel ducts, round pipes, and building MEP systems.
✔ Modern & Clean Appearance
Air Vend CAP





| Code Name | Cover Diameter | Net / mesh | Adapter Diameter | Fit PVC Pipe by inch |
| VCF-M20-3 | 155mm | 20 | 80mm | 3″ |
| VCF-M20-4 | 155mm | 20 | 100mm | 4″ |
| VCF-M20-5 | 220mm | 20 | 119mm | 5″ |
| VCF-M20-6 | 220mm | 20 | 150mm | 6″ |
| VCR-M20–3 | 155mm | 20 | 80mm | 3″ |
| VCR-M20-4 | 155mm | 20 | 100mm | 4″ |
| VCR-M20-5 | 220mm | 20 | 119mm | 5″ |
| VCR-M20–6 | 220mm | 20 | 150mm | 6″ |
| Mesh | Aperture (mm) | Aperture (micron) | Typical Use |
|---|---|---|---|
| 10 mesh | ~1.8 – 2.0 mm | 1800–2000 μm | Leaves / debris |
| 20 mesh | ~0.8 – 1.0 mm | 800–1000 μm | General insect screen |
| 30 mesh | ~0.55 – 0.65 mm | 550–650 μm | Mosquito protection |
| 40 mesh | ~0.4 – 0.45 mm | 400–450 μm | Fine insect screen |
| 60 mesh | ~0.25 – 0.3 mm | 250–300 μm | Dust / small particles |


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