Maxwell Altus Hatch 334 x 334mm Airtight Deck Hatch With Satin Aluminum Frame For Marine Use

Introducing the Maxwell Altus Hatch 334 x 334mm—a rugged, stylish deck hatch engineered for dependable access and airtight performance in demanding environments. Featuring a satin-sheen anodized aluminum frame and a dark smoke acrylic lid, it pairs robust construction with a contemporary look that suits both marine and architectural installations.

The 10 mm thick dark smoke acrylic panel provides clear visibility while resisting UV and weathering, and the slim 21 mm frame height ensures a discreet, low-profile installation. The hatch is designed to be opened from inside or outside, with a versatile ventilation position and a fully watertight lock for secure operation in harsh conditions.

• Hold-open versatility: The lid can be held at almost any angle up to 90 degrees using integrated adjusters, making ventilation, maintenance, or passing items through effortless.
• Deck-ready, interior or exterior access: Fitted on deck and operable from either side for flexible installation and convenient in-use access.
• Ventilation mode: A dedicated ventilation position helps promote airflow and reduce humidity when the hatch is open.
• Watertight security: When closed and locked, the hatch provides a complete watertight seal to protect interiors in wet or windy conditions.
• Premium materials and finish: Satin sheen anodized aluminum frame paired with a 10 mm dark smoke acrylic panel for durability and a refined appearance.
• Precise fit: External dimensions 334 x 334 mm with a cut-out of 260 x 260 mm, designed for reliable retrofits and standardized installation in design category A and appliance location II.
• Product lineage: Product Code M4704, shipped directly from local suppliers for dependable availability. The first image shows one version of our ALTUS hatches, with variations in shape, hinges, adjusters, and handles.

Ideal for marine decks, exposed rooftops, or utility spaces where secure closure and controlled ventilation matter, the Maxwell Altus Hatch 334 x 334mm balances generous interior access with a clean exterior profile. Its combination of adjustable lid positioning, internal/external operation, and watertight sealing addresses real-use scenarios—from daily cabin access on a yacht to servicing a roof hatch on a rugged outdoor installation.

Practical tips for installation and use: ensure your cut-out is perfectly squared to maintain a reliable seal, verify the gasket sits flush, and regularly inspect hinges and adjusters to preserve smooth operation and weather resistance over time.