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Should the County or Municipality require original stamped/sealed "tie-down" copies of the documentation click here

Original copies available from Engineering Express

WCX12 Thru-the-Wall Product Data

WCX "Tie-Down" Certification

WCX "Tie-Down" Certification 

Updated for 2020 Code 1-1-2021

WCX14 Thru-the-Wall Product Data

WHSC Thru-the-Wall Product Data

WHSC "Tie-Down" Certification

WHSC "Tie-Down" Certification

Updated for 2020 Code 1-1-2021

WCX / WHSC Start-Up & Operation Form

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