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Rockler 4'' to 2-1/2'' Dust Collection Y-Connector

Splits 4'' hose into two 2-1/2'' hoses for connection to your power tools—combines multiple hoses and ports into one affordable package.
Item #

This fitting provides two functions that could normally only be achieved by purchasing multiple fittings and hoses—a significant cumulative expense. Firstly, it splits the main line into two lines with an efficient, clog-resistant ''Y'' junction. Secondly, it reduces the hose diameter from a single 4'' hose to two 2-1/2'' hoses so you can connect to common power tools that have a smaller port size, among them router tables, band saws, and small table saws. The 2-1/2'' ports are also compatible with our Universal Small Port Hose Kit, so you can connect handheld power tools to your dust collection system.

Tip: For maximum dust collection efficiency, hose reducers should be located as close to the power tool(s) as possible.

(1) Rockler 4'' to 2-1/2'' Dust Collection Y-Connector
More Information
Brand Rockler
Weight 0.400000
Tech Spec
  • Material: ABS Plastic
  • Outside Diameter of Large Port: 4''
  • Outside Diameter of Small Ports: 2-1/2''
  • Inside Diameter of Small Ports: 2-1/4''
Prop 65 WarningWARNING: Cancer & Reproductive Harm -

Prop 65 WarningWARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to