RELIABILITY: Engineered with a hingeless, removable lid and a specialized thread that automatically ejects the cover with a simple 360° anticlockwise turn.

Key Features

• ✔ Anti-Slip Surface: High-grip texture for safe deck use.
• ✔ Hidden Fasteners: Concealed screws for a sleek, flush-mount finish.
• ✔ Watertight Seal: Integrated rubber O-ring ensures a dry locker/tank.
• ✔ ASA Construction: Superior to ABS in UV and salt resistance.

Technical Specs

Internal Ø (A):	125 mm / 4.92 in
External Ø (B):	164 mm / 6.46 in
Cut-out Ø (C):	139 mm / 5.47 in
Certification:	ISO 12216
Color:	Black

Application	Installation Use	Notes
Marine Decks	Cockpit, Transom, Bulkheads	UV-Stable for external use
Storage Lockers	Dry Storage Access	Watertight O-Ring seal
Tanks	Fuel or Water Tank Inspection	Solvent resistant ASA
RV / Camper	Utility Service Panels	Low-profile flush mount

Is this a genuine original part?

This is a premium quality aftermarket replacement part supplied by 4Boats, manufactured to meet or exceed original equipment (OE) standards for durability and fitment.

How do I know if it is compatible?

We recommend verifying the "Cut-out Ø" (139mm) against your existing hole. If your mounting surface allows for a 164mm external flange, this unit will provide a flush, watertight fit.

Can this hatch be installed on a walking surface?

Yes. This hatch features an anti-slip texture and a low-profile, flush-mount design specifically engineered for boat decks where foot traffic is expected.