Uploaded December 2017 | Updated September 2026, 4 hours ago

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Curious whats inside a Regulators first stage? We disassembled a scubapro mk25 for you. Find out which parts are inside a Regulators First Stage.

Parts list - Scubapro MK25

1. O-ring
2. O-ring Holder
3. Spring
4. Filter
5. Locking screw
6. Connection Piece
7. O-ring
8. O-ring
9. Protection Cap
10. Filling piece
11. Housing
12. O-ring
13. O-ring
14. Piston
15. Anti freeze ring
16. Sleeve
17. Spring
18. Spring Holder
19. Housing
20. O-ring
21. O-ring
22. Sitting
23. Part of Sitting
24. Adjusting screw
25. Sitting holder
26. Washer
27. Protection cap

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