POWERTEC 70135-P2 4" Aluminum Blast Gate for Dust Collector/Vacuum

The POWERTEC 70135-P2 is a professional 2-pack of 4-inch aluminum blast gates, engineered to maximize the suction of your dust collection system. Unlike plastic gates that can warp or crack under pressure, these cast aluminum fittings provide a rigid, airtight seal that directs airflow only to the machines currently in use. By closing off stagnant branch lines, you conserve air volume and keep the CFM (Cubic Feet per Minute) at its peak at the point of the cut, ensuring a cleaner shop and safer air.

Designed with a specialized self-cleaning groove, these gates prevent wood chips and sawdust from building up in the track, which is the leading cause of gate-failure in cheaper models. Each gate features a premium steel sliding door and an integrated locking knob, allowing you to secure the gate in the open or closed position—perfect for overhead lines or high-vibration environments.

• Heavy-Duty Aluminum: Cast body resists abrasives, chemicals, and the "crush" of heavy-duty hose clamps.
• Clog-Proof Groove: Open-slot back design allows debris to be pushed out, ensuring the gate always closes fully.
• Universal 4" Fit: Tapered OD ports accept standard 4-inch ID flexible hoses or rigid ductwork.
• Locking Stop: Built-in thumb screw allows you to lock the gate in place to prevent accidental shifting.
• Zero Suction Loss: Precision-ground sliding surface minimizes air leakage compared to standard plastic gates.

• Nominal Port Size: 4 inches
• Actual Outlet O.D.: 3-29/32" to 3-31/32" (Tapered)
• Body Material: High-Grade Cast Aluminum
• Gate Material: Premium Rigid Steel
• Special Features: Locking Knob & Self-Cleaning Slot
• Pack Quantity: 2 Complete Blast Gates

• Table Saws
• Jointer/Planers
• Band Saws
• Sanding Stations
• Miter Saw Stations
• Drum Sanders
• CNC Routing Tables
• Lathe Dust Hoods

POWERTEC is a leading manufacturer of high-quality woodworking machinery, tools, and dust collection accessories. We are committed to workshop innovation, providing the durable, professional components that keep your machinery performing at its best and your air clean.