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The MACOMB GROUP B338-1-4 is a commercial duty pre-insulated shield featuring 360 DEG Calcium Silicate Insulation and a steel jacket. Designed with a 4 IN nominal size and 1 IN insulation thickness, it conforms to MSS ANSI/MSS-SP-69 And SP-58, Federal Specification WW-H-171E And A-A-1192A industry standards. The jacket has a pre-galvanized finish.
The B338-1-4 pre-insulated shield provides insulation and protection at pipe support points. It is flame retardant and water resistant.
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