Modern Air Systems Limited Viaduct Works,Canon Street , Leicester , LE4 6GH United Kingdom About Solutions products Companies Modern Air Systems Limited Products Collar Joint Collar Joint From Cage Joint 0 Share Similar in functionality to the Double-Ring Joint, this is slightly more advanced in that the collar provides additional protection against potential snagging of the bag during installation or use. Most popular related searches cage collars Customer reviews No reviews were found for Collar Joint. Be the first to review! Add your review Publish your review Great! review successfully added!