NPT DM51-3000 5" Smooth 0 In Depth Marker
NPT DM51-3000 5" Smooth 0 In Depth Marker
Clear and durable 5" depth marker that improves swimmer safety and poolside visibility.
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The NPT DM51-3000 5" Smooth 0 In Depth Marker clearly displays pool depth to ensure swimmer safety at all times. It’s perfect for identifying areas that are not safe for diving.
Crafted for durability and visibility, this 5-inch smooth marker stands out in any pool setting. Its clean, easy-to-read design enhances safety and complies with standard pool signage.
Ideal for public and private swimming areas, it maintains its vibrant look over time. Built for long-term outdoor exposure, it resists wear, fading, and water damage.
This depth marker makes it simple to guide swimmers while creating a safer pool environment. A must-have for pools prioritizing clarity, safety, and reliability.

⭐️⭐️⭐️⭐️⭐️
Customers appreciate the clear, easy-to-read depth labeling, especially in high-traffic pool areas.
Many users highlight the marker’s high durability and resistance to pool chemicals and water exposure.
Pool owners love how quickly and easily the marker installs, making poolside upgrades fast and simple.
Reviewers agree it offers excellent value, lasting much longer than cheaper alternatives on the market.

- Size – 5-inch smooth tile for highly visible depth indication
- Readability – Bold “0 IN” label designed for fast and clear recognition
- Durability – Made to withstand weather, pool water, and heavy foot traffic
- Installation – Simple application suitable for all pool types
- Usage – Ideal for marking no-diving zones and shallow water areas

- Brand NPT
- Application Pool
- Shipping Dimensions 6 x 6 x 0.25 inch
- Color White, Black
- Commercial, Residential, or Professional Commercial
- Design Numbers with IN
- Each Product Weight 0.7 pound
- Legend 0IN
- Legend Color Black
- Letter Size 5 inch
- Marker Location Waterline
- Master Carton Quantity 25
- Material Ceramic
- Minimum Sell Quantity 1
- Product Height 5 inch
- Tile Color White
- Tile Surface Smooth
- UPC Code682384178225

Q: Can this marker be used in saltwater pools?
Yes, it is built to resist saltwater and maintain its visibility and structure over time.
Q: Is the marker tile slippery when wet?
No, the surface is smooth but not slippery, ensuring safety even when wet.
Q: How is this marker installed?
It can be installed using pool-safe adhesive or set into tile grout, depending on your pool finish.

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