The Mr.Hobby GSI-GT03E is a purpose-built vent attachment for the GT03 Mr.Super Booth that helps model makers manage exhaust routing while keeping the work area neat. It reduces the visible exhaust opening so the booth takes up less room and looks cleaner on a crowded bench.
This narrow-style vent slips onto the hose tip to create a tidy finished look once fitted. By reducing the hose diameter from 68mm to just 15mm, it cuts down the window opening needed for exhaust and keeps the outlet discreet.
Fitting the GSI-GT03E is simple: screw the attachment onto the existing hose tip of your GT03 Mr.Super Booth and tighten it securely to avoid leaks. Rotate or reposition the vent as required to fine tune airflow direction for your setup.
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