316 Stainless Steel High Mirror Polished Ball Type Deck Drain Marine Hardware Cockpit Scupper Drain Boat Accessories 38mm

Prevent odors in drainage pipes.

The floating ball in the floor drain is to block the floor drain and prevent the odor in the drainage pipe from coming out.

The specific gravity of the flowing water above will pressure the floating ball to flow away.

Because this round ball is mainly used to block the dirt with relatively large particles, to prevent these dirt from falling into the drainage pipes, resulting in the blockage of the drainage pipes, affecting the normal use of users.