Hyjoy 4 Inch Dust Fittings Kit with Interlock — Steel Flange, 2 Rubber Couplers & Backup Hose, 1 Pack

Secure, twist-lock connection: The interlock feature lets the 4 inch dust duct connector rotate and lock into place to prevent accidental detachment from hose tugs or strong suction, maintaining a tight seal for better suction and a cleaner shop. No-clamp quick switching: Replace fiddly clamps — this adapter lets you connect a dust hose between machines in seconds. Powerful magnets (6 -strength units) clamp firmly to the supplied steel plate for fast, reliable attachment. Built to last: Molded from fiberglass-reinforced nylon for excellent impact and crush resistance, these fittings are made for daily use in busy wood shops and industrial environments, delivering long-term durability. Fits common setups: Works with standard 4" dust hose and accepts the standard 4" rubber dust coupler or a 4" to 2-1/2" rubber dust reducer for smaller hoses. Complete ready-to-use kit: Includes 1 piece 4 inch Dust Duct Connector, 1 piece 4 inch Dust Steel Flange (to mount your machines), 2 pieces 4 inch Rubber Dust Couplers (for 4 inch hose seals), and 1 piece 4 inch Backup Dust Hose.