The AI HMS Double Arm Kit provides vertical rails and mounting feet that rest securely on the aquarium rim, giving a sturdy, no-drill mounting point for the Hydra Mounting System (HMS) without additional hardware. Design: vertical HMS rails plus mounting feet that sit on the tank rim Tank compatibility: works with both rimmed and rimless tanks Adjustable: height and position customizable for precise light coverage System: integrates with other HMS components (rails, brackets) for a complete lighting mount This is the foundation piece for building out a rail-based HMS setup — pair it with HMS rail lengths and light-specific brackets to mount two or more fixtures across the tank.Compatible with: AI HMS rail and bracket components (sold separately).
