What makes the Flush 2G hatch different from earlier Lewmar models?

The 2G iteration improves on the original with enhanced drainage channels, stronger dual stays, and refined sealing for better long-term watertightness. It maintains the ultra-low profile but adds durability for heavier use.

Is this hatch suitable for high-speed powerboats?

Absolutely—its flush design and secure latches minimize wind resistance and vibration at speed. The robust hinges handle planing forces without loosening.

How do I achieve the best ventilation with this hatch?

Use the dual stays for customizable angles: slight crack for airflow in calm conditions, or full prop for maximum exchange during anchor-outs. Pair with dorades for cross-breezes.

Can the dark tint be swapped for clear acrylic?

This model features dark sport tint standard for UV protection and heat reduction, but Lewmar offers clear options in matching sizes for those prioritizing maximum light.

What's the best way to clean the acrylic without scratching?

Mix dish soap with fresh water, use a soft microfiber cloth, and rinse thoroughly. For stubborn salt, a 1:10 vinegar solution works wonders—never use ammonia-based cleaners.

Does it fit thicker decks common on older boats?

The included trim kit accommodates up to 2-inch thicknesses. For deeper cores, add spacers or consult a marine carpenter for a custom sub-frame.

How secure is it for offshore passages?

Extremely—positive locks and friction stays keep it shut against green water. Tested to withstand repeated wave impacts without compromising the seal.

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home > Lewmar Size 70 Flush 2G Deck Hatch > Lewmar Size 70 Flush 2G Deck Hatch

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Lewmar Size 70 Flush 2G Deck HatchTransform Your Boat's Deck with Seamless Style and Performance Imagine gliding across the water with a deck that looks as sharp as a superyacht, without the hassle of bulky hardware snagging lines or bruising shins. This Lewmar Size 70 Flush 2G Deck Hatch elevates everyday boating by blending minimalist design with rugged marine reliability. Pioneered over a decade ago, the flush platform redefined deck access, and the second generation model refines

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Transform Your Boat's Deck with Seamless Style and Performance

Imagine gliding across the water with a deck that looks as sharp as a superyacht, without the hassle of bulky hardware snagging lines or bruising shins. This Lewmar Size 70 Flush 2G Deck Hatch elevates everyday boating by blending minimalist design with rugged marine reliability. Pioneered over a decade ago, the flush platform redefined deck access, and the second-generation model refines it further for boaters who demand both form and function.

Crafted for those long days under the sun or unexpected squalls, it prioritizes effortless water shedding through integrated deck channels, ensuring your cabin stays dry even when waves crash over. The dark sport tint acrylic not only cuts glare and UV rays—keeping interiors cooler—but also resists yellowing from prolonged exposure, a common woe with lesser materials.

Engineered for Real-World Boating Demands

Superior Sealing and Drainage

The EPDM gasket forms a bulletproof barrier against water intrusion, flexing with hull movements without cracking or hardening like cheaper rubber seals. Precision-molded channels route spray away faster than you can say "bilge pump," minimizing any risk of pooling that could lead to interior drips.

Robust Yet Refined Hardware

Stainless steel hinges and ergonomic handles withstand slamming shut in gusts or gentle nudges from crew. Dual friction stays provide adjustable venting positions, from cracked-open for airflow to fully propped for quick escapes or gear retrieval. No more wrestling with weak arms that fail mid-season.

Universal Fit with Pro-Level Finish

A versatile trim kit adapts to standard deck thicknesses, making retrofits straightforward on everything from sleek racers to family cruisers. The low 1.25-inch profile hugs the deck, preserving that factory-fresh contour while allowing full 180-degree opening for unobstructed cabin access.

Easy Installation and Long-Term Care

Drop-in simplicity defines this hatch: Template your cut-out precisely at 24.7 by 24.7 inches, bed it with marine sealant, and secure via the pre-drilled flange. Most DIYers finish in under two hours, but pros swear by aligning with deck core for zero flex. Pro tip: Dry-fit first to avoid sealant squeeze-out nightmares.

Maintenance That Keeps It Performing

Wipe the acrylic monthly with mild soap and microfiber—skip abrasives to preserve the tint.
Lubricate hinges annually with Teflon-based grease for whisper-quiet operation.
Inspect the EPDM seal biannually; replace every 5-7 years depending on UV exposure.
Avoid stacking heavy gear atop when closed to prevent stress cracks.

These steps ensure decades of leak-free service, outlasting hatches that demand constant tweaks.

Perfect for Sail, Power, or Custom Builds

On sailboats, it shines as a foredeck vent, channeling breeze belowdecks without rope interference. Powerboaters love the cockpit escape route, while custom tenders appreciate the flush mount for towing stability. At 25.5 by 27.5 inches overall, it fits larger cockpits or V-berths needing generous light and air—ideal for overnighting without stuffiness.

Boaters report cooler cabins by 10-15 degrees thanks to the tinted pane, crucial in sunny climes where standard clear acrylic turns interiors into saunas.

Frequently Asked Questions

Size 70 Flush 2G Deck Hatch

Lewmar pioneered the high-volume flush hatch platform back in 2006, bringing what was then Superyacht styling into mainstream boat production. The precision of the fit makes for a sleek, modern look and means no more stubbed toes for boat owners.

Features:

Clean aesthetics
EPDM seal provide completely watertight structure
Water drained effortlessly away by deck-moulded channels
Strong, stylish handles and hinges
Trimkit fits all standard sizes
Dark grey acrylic option keeps cabin cooler

Technical Specifications:

Support System - Stay x two (2)
Color - Dark Sport Tint
Dimensions (L x W x H) - 25.5" x 27.5" x 1.25"
Cut-Out Dimensions (L x W) - 24.7" x 24.7"

*Sold as an Individual

SKU: NVN-95801
MPN: 39970812
UPC: 743683157554

Lewmar Size 70 Flush 2G Deck Hatch

Name: Lewmar Size 70 Flush 2G Deck Hatch
Brand: muk-zwingenberg.de
SKU: 10293793862
Price: 615.00 USD
Availability: InStock
Rating: 4.0369 (1548 reviews)