SECTION 232113.13 - UNDERGROUND HYDRONIC PIPING

[NPS 2-1/2 (DN 65) and larger] shall be[ any of] the following: Retain one or more of first five subparagraphs below. If retaining more than one type of material and joining method and it is not the intent to give Contractor the option to select materials, delete the "any of" option in subparagraph above and identify ... ................
................