4" Inch Steel Housing Inline Duct Fan with Variable Speed Controller (4" Fan)

⭐ Key Features

•Heavy‑Gauge Steel Housing – Crafted from rugged, corrosion‑resistant steel, not cheap plastic. Withstands high heat, humidity, and accidental impacts without warping, cracking, or degrading. Delivers decades‑long durability, making it the reliable choice for grow tents, attics, and workshops where conditions are tough.

•Powerful 135 CFM Airflow – Delivers strong, consistent airflow to rapidly exhaust heat, odor, smoke, and excess moisture. Even with long duct runs or multiple bends, the high‑static‑pressure design maintains efficient ventilation for grow tents, 3D printers, basements, kitchens, and bathrooms.

•Whisper‑Quiet 26 dB Noise Level – Operates at a near‑silent 26 decibels—quieter than a library or rustling leaves. Run it continuously day and night without disturbing your sleep, conversations, or focused work. Ideal for bedrooms, offices, and shared living spaces where peace matters.

•Stepless Variable Speed Control – The included precision dial allows infinite speed adjustments from a gentle breeze to full‑power extraction. Fine‑tune airflow to match plant growth cycles, seasonal temperature shifts, or varying humidity levels—complete control for every situation.

•EC Motor + Multi‑Layer Safety – Advanced EC motor cuts energy consumption while extending service life and reducing maintenance. Built‑in stall protection and a low‑voltage wide‑range adapter prevent overheating and electrical hazards, ensuring safe, worry‑free 24/7 operation.

🛠️ Specifications

• Brand : MELONFARM
• Size : 4" Fan
• Material : Alloy Steel
• Unit : 1 Count
• Color : black
• Included components : Cord
• Recommended uses for product : Exhausting
• Special features : Variable Speed Control
• Style : Inline Duct Fan
• Type : ELECTRIC_FAN
• Item dimensions : H: 1.0 / L: 1.0 / W: 1.0
• Package dimensions : H: 5.4 / L: 10.9 / W: 5.5 (Weight: 1.65)

📋 Product Description

Upgrade to Unmatched Durability — Steel Shell, Superior Performance  When it comes to reliable ventilation, the housing material makes all the difference. While plastic fans crack, warp, and lose efficiency over time, the MELONFARM 4" Inline Duct Fan is built with a rugged steel housing that stands up to heat, humidity, and years of continuous use. Engineered for growers, DIY enthusiasts, and homeowners who demand both performance and longevity, this fan delivers powerful 130 CFM airflow at a whisper-quiet 26 dB—so your space stays fresh without the noise.