Posted on October 9, 2019 by Leo — Leave a commentS550 Vent Mount updated design! Similar, but easier, cleaner, simpler and just overall better. Revision B Updates: Twist to lock feature removedLocking magnets now hold gauge securely in place Post navigationPrevious post: Military Discounts Now Available! Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ