---
product_id: 71354164
title: "CLOUDLINE PRO S6, Quiet 6” Inline Duct Fan"
brand: "ac infinity"
price: "$340.17"
currency: USD
in_stock: true
category: "Ac Infinity"
url: https://www.desertcart.us/products/71354164-cloudline-pro-s6-quiet-6-inline-duct-fan
store_origin: US
region: United States of America
---

# 402 CFM airflow 32 dBA ultra-quiet 10-speed programmable control CLOUDLINE PRO S6, Quiet 6” Inline Duct Fan

**Brand:** ac infinity
**Price:** $340.17
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your airflow game—quiet, powerful, and smart ventilation for the modern pro.

## Quick Answers

- **What is this?** CLOUDLINE PRO S6, Quiet 6” Inline Duct Fan by ac infinity
- **How much does it cost?** $340.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/71354164-cloudline-pro-s6-quiet-6-inline-duct-fan)

## Best For

- ac infinity enthusiasts

## Why This Product

- Trusted ac infinity brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Inline Design:** Seamlessly integrates into grow tents, HVAC systems, and AV racks for optimized air circulation.
- • **Whisper-Quiet Operation:** At just 32 dBA, enjoy powerful performance without the noise disruption.
- • **Powerful 402 CFM Airflow:** Maximize ventilation with industry-leading airflow for fresh, breathable spaces.
- • **Energy-Efficient EC Motor:** Brushless motor technology delivers high performance with minimal power consumption and heat.
- • **Precision 10-Speed Controller:** Tailor your environment effortlessly with wired and app-compatible speed controls.

## Overview

The AC Infinity CLOUDLINE PRO S6 is a premium 6-inch inline duct fan featuring a brushless EC motor that delivers 402 CFM airflow at an ultra-quiet 32 dBA noise level. Equipped with a 10-speed wired controller and app compatibility, it offers precise, energy-efficient ventilation ideal for grow tents, HVAC boosting, and AV cooling. Its mixed flow blade design ensures optimal performance even in high resistance ducting, making it the top choice for professionals seeking reliable, programmable air circulation.

## Description

desertcart.com: AC Infinity CLOUDLINE PRO S6, Quiet 6” Inline Duct Fan with Speed Controller - EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics : Patio, Lawn & Garden

## Features

- Designed to ventilate grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool AV racks.
- Features a wired 10-speed fan controller; also compatible with all UIS controllers with intelligent programming.
- PWM-controlled EC motor provides quiet and energy-efficient performance with minimal heat and noise.
- Mixed flow design with stator blade and hydrodynamic wind circles enables airflow delivery in high resistance areas.
- Duct Size: 6” | Dimensions: 7.9 x 12.6 x 8.4 in. | Airflow: 402 CFM | Noise: 32 dBA | Bearings: Dual Ball

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FPFVZTZ |
| Air Flow Capacity | 402 cfm |
| Best Sellers Rank | #1,407 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1 in Hydroponic Ventilation Equipment |
| Blade Length | 8.4 inches |
| Blade Material | Plastic |
| Brand Name | AC Infinity |
| Cable Length | 8 feet |
| Collection Name | Inline Duct Fans |
| Color | Pro Speed Controller for S6 |
| Control Method | App |
| Controller Type | Button Control,App Control |
| Customer Reviews | 4.8 4.8 out of 5 stars (5,516) |
| Electric Fan Design | Exhaust Fan |
| Finish Type | Matte |
| Global Trade Identification Number | 00819137020306 |
| Included Components | Cord, Remote |
| Indoor Outdoor Usage | Indoor |
| Installation Type | Inline Duct |
| Item Dimensions D x W x H | 7.9"D x 12.6"W x 8.4"H |
| Item Weight | 0.27 g |
| Material | Plastic |
| Model Name | CLOUDLINE S6 |
| Model Number | AI-CLS6 |
| Motor Type | Brushless Motor |
| Mounting Type | Downrod Mount |
| Noise Level | 32 db |
| Number of Blades | 10 |
| Number of Power Levels | 10 |
| Number of Speeds | 8 |
| Part Number | AI-CLS6 |
| Power Source | AC |
| Recommended Uses For Product | Inline Duct Fan |
| Room Type | Indoor |
| Size | 6-Inch |
| Special Features | Programmable |
| Specification Met | CE, ETL, RoHS |
| Standby Power Shutoff | High Efficiency |
| Style | Cloudline S6 |
| UPC | 819137020306 |
| Unit Count | 1 Count |
| Voltage | 240 volts |
| Wattage | 38 watts |

## Product Details

- **Brand:** AC Infinity
- **Color:** Pro Speed Controller for S6
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Downrod Mount
- **Power Source:** AC
- **Product Dimensions:** 7.9"D x 12.6"W x 8.4"H
- **Recommended Uses For Product:** Inline Duct Fan
- **Room Type:** Indoor
- **Special Feature:** Programmable
- **Style:** Cloudline S6

## Images

![CLOUDLINE PRO S6, Quiet 6” Inline Duct Fan - Image 1](https://m.media-amazon.com/images/I/515G8psanuL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: What is the range of cfm output, at different settings? can i bring it down as low as 100 cfm?**
A: Hi there, 

Thank you for reaching out to us!

Below I have provided an approximate breakdown of the CFM for the fan on each different speed. 

44 / 88 / 132 / 176 / 220 / 264 / 308 / 351

Kind regards, 

Kenny Ngo
AC Infinity

**Q: Does the fan come with a pressure switch?**
A: No just fan speed

**Q: Is the impeller on fan made of plastic or metal?**
A: is the outer tube made of metal for kitchen hood

**Q: Can I use a T6 intake with an S8 exhaust and fancy controller or will the smart controller only work with the same size ducts?**
A: Duct size should not matter

## Frequently Bought Together

- AC Infinity CLOUDLINE PRO S6, Quiet 6” Inline Duct Fan with Speed Controller - EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
- AC Infinity Flexible 6-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust
- AC Infinity Noise Reduction Clamp 6-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-27*