Lewmar - Size 50 Low Profile Hatch Flange Base

Sleek and Durable Marine Hatch for Enhanced Ventilation

The Lewmar Size 50 Low Profile Hatch Flange Base is expertly designed to provide reliable ventilation and natural light while maintaining a sleek, modern aesthetic for marine applications. Crafted with high-quality materials, this hatch is both lightweight and durable, ensuring long-lasting performance in harsh marine environments. The self-supporting design enhances convenience, allowing smooth and effortless operation without the need for additional support mechanisms.

Built for versatility, this hatch features a smoked grey acrylic window that not only enhances its visual appeal but also provides UV protection and improved visibility. Whether installed on sailboats, motor yachts, or other marine vessels, this hatch offers a secure and weather-resistant solution for improved onboard comfort.

Technical Specifications

• Support System: Self-supporting for effortless operation
• Lower Frame Thickness: 9/16 inch
• Acrylic Window Color: Smoke Grey for UV protection and enhanced aesthetics
• Hatch Weight: 10.6 lb
• Acrylic Window Thickness: 5/16 inch

Product Dimensions

• Overall Length (X): 17 5/8 inches
• Overall Width (Y): 22 11/16 inches
• Overall Height (Z): 1 inch
• Corner Radius (R): 2 7/8 inches
• Cut-Out Length (X1): 14 13/16 inches
• Cut-Out Width (Y1): 19 15/16 inches
• Cut-Out Radius (R1): 1 11/16 inches

Mounting Instructions

For a secure and precise fit, this hatch must be installed on a flat surface with a maximum tolerance of ±1mm. The recommended fastening sizes are:

• Hinge Section: M6 (1/4 inch) fasteners
• Lower Frame: 5mm CSK screw No.10 UNC 2 BA

Highlights

• Low-profile design for a sleek and unobtrusive appearance
• Durable smoked grey acrylic window for enhanced visibility and UV protection
• Self-supporting structure for ease of use and secure positioning
• Lightweight yet robust construction optimized for marine environments
• Easy installation with clear mounting guidelines

Ideal for upgrading or replacing existing hatches, the Lewmar Size 50 Low Profile Hatch Flange Base is engineered to deliver both style and functionality, ensuring comfort and safety on board.

Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.

Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.

Delivery and tracking
Deliveries are handled by trusted carriers such as USPS, UPS, FedEx, and DHL. Estimated arrival times appear at checkout and depend on your location and the service you choose. These are estimates and can be affected by customs or carrier disruptions. A shipping confirmation with a tracking link is emailed when your order ships, and tracking may take up to 24 hours to update. You can also view tracking in your account.

Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.

Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.

Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.

To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.

We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.