Air-tight sealing rings can be changed rapidly in the field without disassembling entire system. Rubber sealing ring in 4 to 9 in. diameter sizes snaps into aluminum pad with machined groove and provides air-tight sealing. Inside safety sealing edge and short lip design allow rapid vacuum attachment and release without need for tools, clamps, screws, and fasteners.

Anver Corp., (800) 654-3500, www.anver.com