Neal Gray October 16, 2020 I have purchased 2 x 15mm %026 Automatic air vents. What is the purpose of the allen screw on the side, and how should it be set? ReplyExpand Hide 2 Replies
I have purchased 2 x 15mm %026 Automatic air vents. What is the purpose of the allen screw on the side, and how should it be set?