Standard Sizes

CPT - 4

Size: 1.75" ID x 4.125" L usable
CPT4aCPT4b

CPT - 5

Size: 1.75" ID x 4.75" L usable
CPT5aCPT5b

CPT - 6

Size: 2.75" ID x 3.00" L usable
CPT6aCPT6b

CPT - 7

Size: 2.75" ID x 4.75" L usable
CPT7aCPT7b

CPT - 8

Size: 2.75" ID x 7.50" L usable
CPT8aCPT8b

CPT - 9

Size: 3.25" ID x 3.50" L usable
CPT9aCPT9b