🌬️ Elevate your airflow game—because your setup deserves the best!
The Coolerguys 120mm or 92mm Fan to 4" Ducting Shroud Funnel is a precision-engineered thermoplastic adapter designed to connect standard case fans to 4" ducting. Featuring a secure stainless steel clamp and an airflow-optimized funnel shape, it ensures efficient ventilation for greenhouses, enclosures, crypto mining rigs, and more. Backed by a 3-year warranty, it combines durability with universal compatibility.
| ASIN | B097W4LY4T |
| Best Sellers Rank | #772 in Computer Case Fans |
| Brand | coolerguys |
| Brand Name | coolerguys |
| Color | Black |
| Customer Reviews | 4.7 out of 5 stars 201 Reviews |
| Item Dimensions W x H | 4.7"W x 2.75"H |
| Item Weight | 0.12 kg |
| Manufacturer | Coolerguys |
| Material | Thermoplastic |
| Material Type | Thermoplastic |
| Product Dimensions | 4.7"W x 2.75"H |
| UPC | 840556074076 |
| Unit Count | 1 Count |
| Wide End Diameter | 12 centimeters |
A**O
The fit is good .
It fits perfect and mates up exactly with a 4" duct hose. The material is not cheap, it's good quality.
A**R
Perfect fit!
Got a120mm case fan and holes line up perfect on this 4-inch shroud/flange, so I would assume the same for the 92mm. It will be used for my small grow tent with 4-inch port for extra ventilation if needed. Glad I found this. Beats me trying to make something myself and nowhere near as easy to use.
A**A
Must have high quality item
I've used these several places in my closet and on my miner. - They are of great quality. The plastic is not flimsy and works well to bolt to the wall vent. - They have just the right size for standard computer fans and HVAC ducts to work together so it is perfect for DIY vents. - They come with a tie down to easily attach HVAC or other hoses.
J**L
Works as intended
As advertised and no issues. Was using with hose for smoke machine.
A**E
Works great and fits well.
My only complaint is that it's a harder, more brittle plastic than you'd typically see PC case fans made of. The reason this matters is you have to drive those massive self-threading PC case fan screws through the holes, and I'd be less worried about this process causing hairline cracks if it was a softer plastic like I'm used to.
A**P
Works as intended!
As advertised; Used this to attach a computer fan to my indoor Mycology farm area for fresh air exchange - Worked great! I used a 140mm fan.
D**R
Wrks as intended. But!
Works as it should for 129mm square fan. Ho;es for a 92mm fan are pre-drill which leave 4 small hoes outside the duct when using for a 120mm fan. These holes holes should be of the knock=out type.
T**R
RV Closet Vent
Worked great for my 92mm RV closet fan vent to redirect air and prevent condensation on outer wall.
E**E
Works perfectly with 120mm fans, just use silicone screws though
I used this as the foundation for a DIY bathroom vent project in an older apartment where the existing vent opening was much smaller than modern standards. It gave me an easy way to connect a 120mm Noctua fan to ducting without having to build everything from scratch. The shroud is sturdy, fits the fan perfectly, and creates a smooth transition into the duct. It was easy to modify for my custom setup, and the included clamp held the duct securely in place. I opted to use silicone screws because I felt that metal fan screws would have broken this thing, but it was a win because it reduced vibration over all.
Trustpilot
1 day ago
1 month ago