Marine Sand Filter Tank O-Ring O-381 sensing-levels_Triple Sensing is printed on heavy-duty aluminum

is printed on heavy-duty aluminum material and is designed to designate a specific lane for sprinting only

The solid one-piece molded construction with 100% resin material is naturally impervious to salt air

This chemical is meant to be maintained between 80-120 ppm so that the water does not turn corrosive or create a scale build up

This sign will meet California code for swimming pools

Marine Sand Filter Tank O-Ring O-381 sensing-levels_Triple Sensing is printed on heavy-duty aluminumThis o ring is designed to replace Marine Sand Filter Tank O Ring 6245. It is identical to O 381. This o ring has been manufactured in accordance with OEM specifications and are designed to meet or exceed specifications.