Inside Diameter: 3/8" 1/2" OR 12" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 3-1/2" 4" 5" 6" 6-5/8 " 8" 10" 14" 16" 18" 20" Length: 18 ' 21 ' 42 ' Grade: A500 A53 A53F