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CSA ANSI Z21.22-1999
M00087618
New product
CSA ANSI Z21.22-1999 Relief Valves for Hot Water Supply Systems
standard by CSA Group, 01/01/1999
Full Description
This standard covers the safe operation, substantial and durable construction, and acceptable performance of relief valves for hot water supply systems. Same as CSA 4.4-M99.In stock