AC Infinity 4-Inch 3-Way Y-Duct Splitter

Heavy-duty 4-inch 3-way Y-shaped duct splitter for dividing or combining airflow across two ventilation lines.

The AC Infinity AC-DSA44 is designed to split or combine airflow using a single inline exhaust fan. Precision-manufactured from solid steel with a protective black powder-coated finish, this Y-connector provides durable performance across HVAC, grow tent and workshop ventilation setups.

Its smooth, curved joints help reduce static pressure drops, air friction and turbulence compared with abrupt right-angle T-junctions. Each 4-inch opening features raised ridge lips for improved grip when securing flexible aluminium ducting with worm-drive clamps or foil tape.

Key Features

• Swept Y-shape geometry: Splits or merges airflow along gradual curves to help reduce resistance, pressure load and fan noise.
• Raised ribbed duct lips: Beaded collar ridges create a high-friction grip to help prevent ducting or rubber couplers from sliding off.
• Solid powder-coated steel construction: Provides greater rigidity and temperature tolerance than thin plastic or foil adapters.
• Single-fan efficiency: Lets one inline duct fan serve two separate ventilation zones or multi-chamber tents.
• Universal 4-inch compatibility: Suitable for flexible aluminium ducting, inline exhaust fans and carbon filters.

Technical Specifications

Real-World Applications

• Multi-chamber and dual-tent cultivation: Connects one inline fan to ventilate separate growing areas, such as 2-in-1 grow tents or two smaller tents.
• Dual-zone HVAC cooling: Divides intake or exhaust airflow across two adjacent rooms or cupboards using one central fan.
• Workshop dust collection: Branches 4-inch extraction lines to serve two collection hoses for woodworking tools and machinery.