Felton Inc. 7 Burton Drive , Londonderry , New Hampshire 03053 USA About Solutions products Companies Felton Inc. Products Master Controller Seals Master Controller Seals From Mass Transit 0 Share Felton’s mass transit products seal out debris and visually hide cavities, helping you to conceal gaps around mechanisms such as shafts, power lift gates, e-brakes, and seat hinges. Customer reviews No reviews were found for Master Controller Seals. Be the first to review! Add your review Publish your review Great! review successfully added!