CHLOREP (CHLORine Emergency Plan) ChLOREP devices are special emergency tools designed specifically for use by the CHLOREP teams.  Special training is required for using these tools and thus they are not included in the kits. The 400A is Designed to close cylinder & ton valves (Sherwood & Teckno "standard" design and Sherwood "robust" design, not Ceodeux)  with stripped valve stem threads. Download Here: 400