copper tubes AMERICAN STANDARD ASTM B88 SEAMLESS COPPER WATER TUBE TYPE M, Type K, Type L copper tubes:AMERICAN STANDARD ASTM B88 SEAMLESS COPPER WATER TUBESTANDARD LENGTHSThe ... standard lengths for drawn temper ASTM B 88 ... ",3",3-1/2",4",5",6",8",10",12" copper tubes