Seaflo Round O-Ring-Sealed Access Hatches bring true marine-grade durability for the most reliable protection. Seaflo access hatches have anti-aging, UV-resistant ABS thermoplastic construction with robust reinforcement. The rugged, low-profile design provides performance you can count on for years. Weathertight O-rings give ideal protection in interior or exterior applications. Weathertight O-ring seal Anti-aging, corrosion-resistant, UV-resistant durability Low-profile design Easy installation