Profile: Advanced Couplings Ltd. is a manufacturer and supplier of stainless steel tube connections. We specialize in precision coupling. Our product spectrum contains products like safety clamps, ferrules, gaskets, adaptors, hose tails, reducers, blanks, and pipe hangers. Our bubble trap standard products feature taper on trap lid for self draining exterior, self enclosed rod threads for easy wipe down, and all welds removed, smoothed, and polished.