... diameter) 1"X1" 14, 15, 16, 17, 18 2"X2" ' 10, 11, 12, 13, 14, 15, 16, 17 3"X3" 10, 11, 12 ... , 13, 14 4"X4" 8,10, 11, 12, 13, 14 ... 1"X2" ' 14, 15, 16, 17, 18 2"X1" 14, 15, 16, 17, 18 3/4 ... "X3/4" 16, 17, 18, 19, 20, 21 ... 18, 19, 20, 21, 22 1/2"X1' 16, 17, 18, 19, 1/4"X1/4" 23 3 ...