G121-10  - 3/8"
G121-15  - 1/2"
G121-20  - 3/4"
G121-25  - 1"
G121-32  - 1 1/4"
G121-40  - 1 1/2"
G121-50  - 2"
G121-65  - 2-1/2"
G121-80  - 3"
G121-100 - 4"