Fits BT-5 tube

Semroc Centering Rings Fiber BT-5 to BT-20(2pk) SEM-RA-5-20

Semroc Centering Rings Fiber BT-5 to BT-20(2pk)  SEM-RA-5-20 Laser-cut rings for centering a BT…

Semroc Centering Ring Wound Craft Paper ST-5 to ST-8(1pk) SEM-CR-58

Semroc Centering Ring Wound Craft Paper ST-5 to ST-8(1pk)   SEM-CR-58  Spiral Wound P…

Semroc Centering Rings Fiber ST-5 to ST-7(2pk) SEM-CR-57

Semroc Centering Rings Fiber ST-5 to ST-7(2pk)   SEM-CR-57 Laser cut fiber to fit an ST-5 …

Semroc Centering Rings Fiber ST-5 to ST-11(2pk) SEM-CR-511

Semroc Centering Rings Fiber ST-5 to ST-11(2pk)   SEM-CR-511 Laser-cut rings for centering…

Semroc Centering Ring Fiber ST-5 to ST-10(2pk) SEM-CR-510

Semroc Centering Ring  Fiber ST-5 to ST-10(2pk)   SEM-CR-510 Laser-cut rings for cen…

Semroc Centering Ring Wound Craft Paper BT-5 to BT-20 by 1/8"(1pk)(EB-20) SEM-CR-5-20-1/8

Semroc Centering Ring Wound Craft Paper BT-5 to BT-20 by 1/8"(1pk)(EB-20)  SEM-CR-5-20-1/8…

Semroc Centering Ring Wound Craft Paper BT-4 to BT-5(1pk) SEM-CR-4-5

Semroc Centering Ring  Wound Craft Paper BT-4 to BT-5(1pk) SEM-CR-4-5 1 pack ID= 0.449" OD…

Semroc Centering Ring Wound Craft Paper BT-3 to BT-5(1pk) SEM-CR-3-5

Semroc Centering Ring Wound Craft Paper BT-3 to BT-5(1pk) SEM-CR-3-5 Also used as a Thrust Block or …

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-1+ to BT-5(2pk) SEM-RA-1+-5

Semroc Centering Rings Fiber BT-1+ to BT-5(2pk)  RA-1+-5  1 pack ID= 0.250" OD= 0.516" 0.0…