Section 23 21 13 - HYDRONIC PIPING - WBDG | WBDG

2. Copper water tube option: ASTM B88, Type K or L, hard drawn. // Soft drawn tubing, 20 mm (3/4 inch) and larger, may be used for runouts routed under slab to floor mounted fan coil units. // B. Extension of Domestic Water Make-up // and All Solar Hot Water // Piping: ASTM B88, Type K or L, hard drawn copper tubing. ................
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