Inflatable Purge Bladder, Compatible Pipe Diameter (Maximum) 3 in, Harness Length 11 in, Maximum Temperature 250 Degrees F, Gas Flow Rate (Maximum) 30 cfh, Features Connected By a Braided Tube, Reusable, Bladder Design Double Purge Bag System with High Heat Harness, Exterior Bag Material Polyurethane-Coated Nylon, Process Purging Multiple Pipes, Resistance Properties Spark , Standards CE Approved