Threaded cap M25x2 waterproof for diving tank inspection:
The watertight plug is specially threaded in M25x2 to the thread of the diving tanks.
This multifunctional plug is the ideal tool for diving tank inspection.
It allows to close a diving cylinder hermetically during a long period without tap and thus avoids internal corrosion
During internal blasting operations with a barrel blaster, it will close the bottle and retain the corundum.
It can also be used to hang the cylinder because it is pierced diametrically and allows to hang it with a cord or a ring (not supplied)