B24V-WP-G400 Dixon Valve Weld Plate Pipe Block Hanger - 4" Tube OD - 304 Stainless Steel with Silicone InsertFeatures: Insulation envelope: reduced OD allows hanger to be buried under the insulation jacket. There are no exposed threads or openings in hardware plates. All plates are polished, bolts are cleaned and nuts are lubricated with FDA approved product. Hanger threads match MSS 69 rod OD requirements Temperature Range: 40F to 320F ( 40C to 160C). Construction: One piece silicone insert 80 durometer Hardware: 304 & 316 stainless steel Part Number Tube