"Perfect Size:
The marine boat scupper is 3 inches in diameter and 2-1/4 inches in height. Designed specifically for hull tubes over 1-1/8 inches.

Durable Material:
The boat self bailing drain is made of high-quality materials, and our boat drain ball can resist seawater corrosion and provide long-lasting durable performance.

Efficient Self-Draining Function:
The innovative self-draining mechanism automatically drains the accumulated water on the boat, preventing water accumulation and ensuring that the cabin is dry and safe.

Smooth Function:
The boat scupper drain operates smoothly, allowing water to flow out freely while preventing debris from entering, protecting the hull from potential damage.

Multifunctional Features:
The boat self bailing scupper not only acts as a drain valve, but also has a check valve function, which can prevent water from flowing back into the boat even in severe sea conditions."