![Bullet for installing O-ring on piston 1st stage](https://scubagaskets.com/wp-content/uploads/2022/03/Piston-seat-bullet-e1639595376312-300x300.jpg)
Bullet for installing O-ring on piston 1st stage
Universal bullet for installing O-ring on the piston 1st stage
This bullet tool is suitable for the most common models of piston first stages. Such as Scubapro MK2 – Aqua Calypso – Mares R2s – Sherwood Brut – Cressi AC2