Maestrini Bronze Deck Filler

The Maestrini Bronze Deck Filler is available in 2 1/2" and 5" sizes and delivers premium marine performance with corrosion-resistant bronze construction. Its low-profile design includes a secure threaded cap, O-ring seal, and countersunk mounting holes for easy installation and reliable, leak-proof access to fuel or water tanks.

Features

• Premium Bronze Construction: Crafted from high-grade, corrosion-resistant bronze for exceptional durability in harsh marine environments, ensuring long-lasting performance against saltwater exposure.Versatile Sizing Options:
• Available in 2 1/2" and 5" diameters to accommodate various hose connections (typically 38mm/1.5" ID for smaller and up to 51mm/2" ID for larger), providing flexible fuel or water tank access
• Low-Profile Design: Sleek, flush-mounted profile minimizes deck obstruction and enhances boat aesthetics while maintaining a secure, streamlined fit.
• Secure Threaded Cap: Features a robust, easy-grip threaded closure that locks tightly to prevent leaks, spills, or contamination during rough seas.
• Reliable O-Ring Seal: Integrated O-ring provides a watertight, airtight seal to protect tank contents from moisture ingress and environmental debris.
• Easy Installation: Equipped with countersunk mounting holes for simple, tool-free deck securing using standard marine fasteners, ideal for DIY or professional setups.
• Marine-Grade Reliability: Designed for below-waterline or deck applications, with electrical bonding compatibility to guard against electrolytic corrosion—perfect for boats, yachts, and offshore vessels.
• Universal Compatibility: Suitable for diesel, gasoline, or fresh water systems, offering broad utility for fueling and tank filling needs.

Specifications

• Material: High-grade, corrosion-resistant marine bronze (C83600 or equivalent)
• Available Sizes: 2 1/2" (63.5 mm) overall flange diameter
                         5" (127 mm) overall flange diameter
• Hose Connection:2 1/2": 38 mm (1.5") ID
                            5": 51 mm (2") ID
• Mounting: 4 x countersunk holes (M6 or #12 fasteners recommended)
• Cap Type: Threaded, with knurled grip and integrated O-ring seal
• Seal: Nitrile (NBR) O-ring, fuel and water resistant
• Profile Height: 18 mm (low-profile flush fit)
• Applications: Diesel, gasoline, fresh water (not suitable for waste)
• Bonding: Grounding tab for electrical continuity
• Certification: Compliant with ISO 8099 and CE marine standards
• Weight:2 1/2": 0.65 kg
              5": 1.4 kg