Miller 300974 4-Inch Duct Adapter for HV 400 Fume Extractors

Keep Your Air Clean and Your Shop Running

As a welder, you know that a good fume extractor is your best friend when you're under the hood all day. The Miller 300974 Duct Adapter is the piece you need if you are running a Miller HV 400 system and need to connect 4-inch hoses or ductwork. Don't let a broken or missing adapter compromise your safety or the air quality in your shop.

Using genuine Miller parts means you don't have to fight with the equipment to get it to fit. This adapter slides right into place, creating a tight seal that ensures all that smoke and fume gets pulled into the filter where it belongs, rather than leaking out into the shop. It's built tough, just like your welder, so you can trust it to hold up against the knocks and bumps of a busy workspace.

Maintenance shouldn't be a headache. If your old adapter is cracked or lost, swapping it out with this OEM replacement is quick and easy. It’s designed to get your fume extraction system back to 100% efficiency so you can focus on laying perfect beads without worrying about what you're breathing in. Check your machine manual to confirm fitment, and get back to welding safely.