Magnetic Duct Caps e hose Connectors Ø 150/125 mm

This magnetic connector is designed to join 150 mm and 125 mm ventilation ducts — perfect for CO₂ laser exhaust systems like my Omtech. It features 15 strong 8 mm x 1.6 mm magnets on each side, ensuring a secure and airtight fit.

You can connect same-size ducts or mix 125 mm with 150 mm — the magnet layout is symmetrical and compatible either way. Personally, I used it to link a 125 mm indoor hose to a 150 mm outdoor duct, adapting my Omtech CO₂ laser to a narrower vent pipe.

Also included is a magnetic cap, great for blocking insects, dust, and debris from entering the vent when used outdoors.

Check out my profile for more laser engraver upgrades, including a rainproof vent cover and a protective mesh terminal.

P.S. To minimize smoke leakage, I applied a thin layer of oil or petroleum jelly on one connector and a ring of hot glue (silicone works too) on the other. When joined, the seal is tight and smoke stays in.

Note on material: Do not print this in regular PLA — even a single day of sun exposure can warp and deform the parts. For best results, use ABS+ or PETG , which offer much better heat and UV resistance. If you're using an open printer like the A1 Mini, PETG is highly recommended for consistent outdoor performance without warping.

Tags for indexing: laser cutter exhaust, magnetic duct connector, 150mm ventilation, CO2 laser vent, Omtech accessories, hose adapter, laser engraver upgrades, vent cap, dust extraction, DIY laser projects

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