T-H Marine Rigging Flange Hose Union 2-inch Split Retrofit — Black, ABYC/NMMA Compliant

The T-H Marine RFHU-1-DP Rigging Flange Hose Union in black is a 2-inch, split retrofit fitting that creates a neat, ABYC/NMMA-compliant rigging pass-through for Type B hose at the transom while keeping the fuel primer bulb accessible.

When running control cables, wiring and fuel hose to an outboard, a tidy exit point at the transom matters for appearance, safety and long-term serviceability. The RFHU-1-DP is made to complete a professional rigging flange system: its split construction lets you install the union on boats already rigged without tearing out existing lines. Sized for Type B rigging hose and built to meet ABYC and NMMA guidance, this component helps maintain a clean, consistent rigging layout and keeps the primer bulb exposed for inspection and operation.

How does this hose union improve a boat's rigging layout?

The union creates a finished pass-through that organizes multiple runs—cables, electrical, and fuel hose—through a single transom opening. By channeling rigging inside a dedicated hose and securing it with the flange, clutter is reduced and lines are protected from chafing and UV exposure.

• Provides a tidy exit point for rigging hose to the outboard.
• Protects hoses and wires from sharp transom edges and movement.
• Maintains a consistent transom footprint for multiple runs.
• Keeps the primer bulb accessible for quick checks and pumping.

Can I install this without re-running existing controls and wiring?

Yes—the RFHU-1-DP uses a split retrofit design so you can fit it around pre-installed lines. That reduces labor and downtime compared with one-piece unions that require full re-routing of cables and hoses.

• Split construction snaps around existing rigging hose and lines.
• Ideal for upgrades or repairs on already-rigged boats.
• No need to disconnect the primer bulb or pull the engine to install.
• Works with T-H Marine rigging hose for an integrated system.

Is this compatible with my hose and does it meet certification standards?

The union is sized specifically for Type B rigging hose and was designed to align with ABYC and NMMA recommendations for outboard rigging. It is intended to be used with T-H Marine rigging hose to ensure a secure fit and proper routing.

• Fits Type B rigging hose dimensions used on many outboard installations.
• Manufactured to comply with ABYC and NMMA considerations for rigging exits.
• Sold as part of a flange system where ports and unions pair as needed.
• Fuel hose not included—select the correct hose separately.

What are the physical and installation details I should know?

The RFHU-1-DP is a compact 2-inch-diameter flange in black, designed to minimize the transom footprint while delivering a consistent exit point. It pairs with T-H Marine fuel hose port flanges and is intended for a neat, professional finish.

• 2-inch diameter flange keeps the transom area clean and compact.
• Black finish near-matches many outboard and transom colors for discreet appearance.
• Split design reduces installation time on existing boats.
• Sold separately from fuel hose and port flange to match specific rigging needs.

Who is this for: Marine technicians, boat owners, and rigging professionals who need a low-profile, code-conscious rigging exit solution for outboard or stern rigging installations. If you want a tidy transom appearance, simplified retrofit installation around existing lines, and a part that integrates with a compliant rigging flange system, the T-H Marine RFHU-1-DP is engineered for that purpose.