Vetus
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
