AI-CLT4

AC Infinity Cloudline Pro T4 – 4" Quiet Inline Duct Fan with Smart VPD Controller

Ultra-quiet 205 CFM smart fan — perfect for 2x2 to 3x3 grow tents. Runs as low as 28 dBA with intelligent Temperature, Humidity & VPD control via the included Controller 69 Pro + WiFi app.

Key Features
- Smart Controller 69 Pro – Real-time VPD monitoring, dynamic triggers, timers, schedules & app control
- Ultra-quiet PWM EC motor + mixed-flow design for strong airflow even through filters
- Detachable motor for easy cleaning • Dual ball bearings • Any mounting orientation
- UK plug ready • 2-Year Warranty
Specs
- Duct Size: 4"
- Airflow: 205 CFM
- Noise: 28 dBA
- Static Pressure: 223 Pa
- Power: Max 28W
What's Included

Cloudline Pro T4 fan + Controller 69 Pro with 12ft probe + mounting hardware.

Perfect for grow tent exhaust, carbon filter setups, and balanced ventilation.

Quick Tips

Mount high in the tent • Minimise duct bends • Pair with 4" ducting • Set low baseline speed + smart triggers.

In stock • Discreet next day UK shipping

Shop more AC Infinity EC Fans → View Full AC Infinity Range →

Customer Quote “Super quiet and the VPD controller is brilliant – keeps my tent stable effortlessly.” – UK Buyer

Product Identification
Manufacturer	AC Infinity Inc.
Product Name	CLOUDLINE T4
Product Model	AI-CLT4
UPC Code	854759004785
Product and Mounting Dimensions - Fan Unit
Duct Size	4"
Total Dimensions	7.40 x 11.93 x 6.93 in. (18.8 x 30.3 x 17.6 cm)
Mounting Hole-To-Hole Distance	3.15 x 2.36 in. (8.0 x 6.0 cm)
Screw Hole Size	Ø 0.197 in. (Ø 0.5 cm)
Cord Length to Controller	120 in. (10 feet)
Product and Mounting Dimensions - Controller
Total Dimensions	5.19 x 2.91 x 1.06 in. (13.2 x 7.4 x 2.7 cm)
Hole to Hole Distance	4.71 x 2.64 in. (12.0 x 6.7 cm)
Screw Hole Size	Ø 0.119 in (Ø 0.3 cm)
Display Size	3.5 x 1.4 in. (9 x 3.5 cm)
Cord Length to Plug	96 in. (8 feet)
Sensor Probe Length	144 in. (12 feet)
Product Performance and Technical Specs
Total Airflow	205 CFM
Total Noise	28 dBA
Max Speed	2800 RPM
Static Pressure	223 Pa
Voltage	100-240V AC
Frequency	50/60 Hz
Max Power Draw	28 W
Average Power Usage	21 W
Current	0.4 A
Power Connector Type	UK plug
Operating Humidity	35 to 85% RH
Operating Temperature	32 to 140°F
Ingress Protection	IP 44
Fan Bearings	Dual Ball
Mounting Positions	Horizontal or Vertical
L10 Life Expectancy	67,000 Hours
CE Certification (Whole Product)	PDF
ETL Cert. (Whole Product)	PDF
RoHS Cert. (Whole Product)	PDF
SAA Cert. (Whole Product)	PDF
IC Cert. (Whole Product)	PDF
Product Manual
Product Manual	PDF

Cloudline Pro T4, Quiet Inline Duct Fan System With Temperature Humidity Vpd Controller, 4-Inch