pipe oneway-Air-flow stopper

pipe oneway-Air-flow stopper

Description

This is a oneway airflow stopper for inside the pipe ( 67mm pipe inside ) put a thin rubber sheet in-between the windstopper and the pin.. i used some nylon 3mm screws to tighten them together.. its for my Printers enclosure where the pipe is going to the outside of house, so air from outside is stopped from coming in..

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Household