Vetus MAGNUS 4242 Offshore Deck Access Hatch 474 x 474mm

The Vetus MAGNUS 4242 Deck Access Hatch is a premium offshore-grade aluminium deck hatch designed for sailing yachts, launches, powerboats and commercial vessels requiring exceptional strength, watertight integrity and ease of operation. Certified for CE Design Category A (Ocean), the MAGNUS range is engineered to withstand some of the world's harshest marine environments while providing reliable access, ventilation and natural light below deck. The hatch features a satin anodised aluminium frame combined with a 10mm dark smoke acrylic lens, providing excellent impact resistance, UV protection and reduced glare. Heavy-duty friction hinges allow the lid to remain securely open at virtually any position through 180°, eliminating the need for gas struts or support stays and providing unrestricted access through the opening. Designed to fit industry-standard cut-out dimensions, the MAGNUS 4242 is ideal for both new vessel construction and replacement installations. The hatch can be opened from inside or outside, incorporates a ventilation position, and can be locked completely watertight for maximum protection in offshore conditions. Key Features Genuine Vetus MAGNUS 4242 Offshore Hatch CE Design Category A (Ocean) approved Satin anodised aluminium frame 10mm dark smoke acrylic lens Heavy-duty friction hinges Opens through 180° Holds open at virtually any angle Internal and external opening operation Ventilation locking position Fully watertight locking system UV-resistant acrylic glazing Industry-standard replacement cut-out dimensions Suitable for offshore yachts and powerboats Corrosion-resistant marine construction Why Buy from Barton Marine NZ? At Barton Marine NZ, we supply genuine Vetus marine hardware trusted by New Zealand yacht owners, boat builders and commercial operators. The MAGNUS 4242 offers premium European engineering with exceptional strength and reliability for demanding offshore conditions. Perfect for: Offshore sailing yachts Cruising yachts Powerboats Launches Catamarans Commercial vessels New boat builds Yacht refits Cockpit access Cabin ventilation Technical Specifications Feature Specification Brand Vetus Model MAG4242SL Product MAGNUS 4242 Deck Hatch Overall Size 474 × 474mm Cut-out Size 421 × 421mm Corner Radius 43mm Height Above Deck 36mm Frame Material Satin Anodised Aluminium Lens Material 10mm Dark Smoke Acrylic Opening Angle Up to 180° Hinge Type Friction Hinges Operation Inside & Outside Ventilation Position Yes CE Rating Design Category A (Ocean) These specifications are published by Vetus for the MAG4242SL offshore hatch. Common Applications The Vetus MAGNUS 4242 is ideal for: Foredeck access Cabin roof hatches Saloon ventilation Escape hatch applications (where compliant) Cockpit access Offshore cruising yachts Powerboats Catamarans Commercial marine vessels Yacht refits and new builds Performance Benefits The Vetus MAGNUS 4242 delivers: Outstanding offshore watertight performance Excellent durability in saltwater environments Smooth operation with friction hinges Unobstructed 180° opening Superior UV resistance Excellent impact resistance Easy replacement using industry-standard cut-out dimensions Long service life with minimal maintenance Premium European marine engineering Please note: not original packaging. Brown on the hatch is a sticky paper for protection. Peel off once installed.