NPT DM51-2040 5" Smooth 4 Ft Depth Marker 15' x 30' this O-ring enhances the efficiency

this O-ring enhances the efficiency of your pool and spa systems

this main drain is a dependable choice for any pool system

it ensures long-lasting durability

creating a glowing effect at night for up to 8 hours on a full charge

and reposition as needed

NPT DM51-2040 5" Smooth 4 Ft Depth Marker 15' x 30' this O-ring enhances the efficiencyThe NPT DM51 2040 5" Smooth 4 Ft Depth Marker is a must have for any pool needing clear and reliable safety signage. It displays the water depth boldly to help swimmers stay informed and safe. This depth marker features a smooth surface that resists wear and is easy to clean. Its vibrant print ensures visibility in any lighting or water conditions. Designed to indicate safe diving zones and water depth, its ideal for residential or commercial pools.