Fits BT-2 tube

Semroc Centering Ring Wound Craft Paper BT-2 to BT-4(1pk) SEM-CR-2-4

Semroc Centering Ring Wound Craft Paper BT-2 to BT-4(1pk) SEM-CR-2-4 1 pack ID= 0.281" OD= 0.442" 1/…

Semroc Centering Rings Fiber BT-2 to BT-20(2pk) SEM-RA-2-20

Semroc Centering Rings Fiber BT-2 to BT-20(2pk) RA-2-20 Tough Fiber 0.05" Thick ID= 0.281" OD= 0.71"…

Semroc Centering Rings Fiber BT-2 to BT-5(2pk) SEM-RA-2-5

Semroc Centering Rings Fiber BT-2 to BT-5(2pk) RA-2-5 2 pack ID= 0.281" OD= 0.516" 0.05" thick black…

Semroc Centering Rings Fiber BT-2 to BT-4(2pk) SEM-RA-2-4

Semroc Centering Rings Fiber BT-2 to BT-4(2pk)  RA-2-4 2 pack ID= 0.281" OD= 0.42" 0.05" thick …

Semroc Centering Rings Fiber BT-2 to BT-3(2pk) SEM-RA-2-3

Semroc Centering Rings Fiber BT-2 to BT-3(2pk)  RA-2-3 Tough Fiber 0.05" Thick ID= 0.218" OD= 0…