RUBBER SEALING O RING FOR A.637

241mm Waterproof External Hatch Cover – Marine Grade Deck Access

Keep your vessel watertight with this 241mm externally sealed hatch cover, engineered for reliable performance in demanding marine environments. Designed for kayaks, canoes, sailboats, and small craft, this large-diameter hatch cover delivers a secure, weatherproof seal to protect your onboard storage from water ingress.

How It Works

The hatch body (gasket) is permanently mounted to the hull. An A.638 O-ring is seated around the gasket, beneath the retaining lip, creating a compression seal along the external diameter. The lid is then threaded and screwed down tightly, forming a watertight barrier around the outer edge of the hatch.

Available Options

3 colours to match your vessel's deck
Compatible with hatch cover bag A-BAG-KIT for versatile onboard storage solutions

Key Features

241mm diameter – ideal for larger storage access on small craft and touring vessels
External O-ring seal for maximum water resistance
Screw-lock lid for quick, secure access
Durable marine-grade construction built to withstand UV, salt, and moisture
Lightweight and low-profile for flush deck integration

Please Note: This hatch cover requires A0638 O-ring for a complete watertight seal. The A0638 O-ring is not included and must be purchased separately.

Compatible with: kayaks, canoes, dinghies, sailboats, and RIBs.