Stop collars for Open & Cased hole applications
| Item No. | Item Description Size x OH | Centek Part No. |
| 1 | 4 x 5 5/8 | 0400-SSSO |
| 2 | 4 1/2 x 5 3/4 - 6 | 0412-SSSO |
| 3 | 5 x 5 3/4 - 6 | |
| 4 | 5 x 8 3/8 - 8 1/2 | 0500-SSSO |
| 5 | 5 DP Inner string | |
| 6 | 5 1/2 x 8 3/8 - 8 1/ | 0512-SSSO |
| 7 | 5 1/2 DP Inner Str | |
| 8 | 6 5/8 x 9 7/8 | |
| 9 | 6 5/8 x 7 5/8 | 0658-SSSO |
| 10 | 6 5/8 Inner String | |
| 11 | 7 x 8 3/8 - 8 1/2 | 0700-SSSO |
| 12 | 7 5/8 | 0758-SSSO |
| 13 | 8 5/8 x 9 7/8 | 0858-SSSO |
| 14 | 8 5/8 Tieback | |
| 15 | 9 5/8 x 12 1/4 | 0958-SSSO |
| 16 | 9 7/8 x 12 1/4 | 0978-SSSO |
| 17 | 10 1/8" x 12 1/4 | |
| 18 | 10 3/4 x 12 1/4 | 1034-SSSO |
| 19 | 11 3/4 x 14 3/4 | 1134-SSSO |
| 20 | 13 3/8 x 16 u/rea | 1338-SSSO |
| 21 | 13 3/8 x 16 - 17 1/ | |
| 22 | 16 x 20 u/ream | 1600-SSSO |
| 23 | 16 x 20 | |
| 24 | 18 5/8 x 23 - 26 | 1858-SSSB |
| 25 | 20 x 26 | Development due |
| 26 | 30 x 36 | Development due |