Waterpik Sonic-Fusion Replacement Brush Heads 2-Pack Black — Full-Size, Built-In Flossing Channel

These are genuine Waterpik full-size Sonic-Fusion replacement brush heads (2 black heads) with built-in flossing technology and a 25% larger head than standard compact replacements.

Keep your Sonic-Fusion flossing toothbrush performing as intended with factory-made replacement brush heads designed specifically for Waterpik Sonic-Fusion and Sonic-Fusion Professional models. Each pack contains two full-size heads in black—one with a black color ring and one with a metallic ring—plus protective covers and easy-open packaging. The brush heads combine soft, high-low bristles with the patented built-in flossing channel so you can brush and floss using a single powered handle. For optimal performance, swap heads every three months or sooner if bristles fray.

How do these replacement heads fit my Waterpik Sonic-Fusion toothbrush?

The brush heads are manufactured by Waterpik to be compatible with all Sonic-Fusion and Sonic-Fusion Professional handles. They snap onto the same removable shaft used by your original heads, so installation is straightforward and tool-free. Using genuine Waterpik heads preserves the device’s intended flossing and brushing action.

• Direct fit for Sonic-Fusion and Sonic-Fusion Professional models
• Tool-free snap-on installation
• Designed to maintain original flossing channel performance

What makes the full-size heads different from compact heads?

Full-size Sonic-Fusion heads are approximately 25% larger than Waterpik’s compact replacement heads, offering more brushing surface and coverage per stroke. The larger profile can feel more substantial in the mouth and is ideal if you prefer broader bristle contact on each tooth. Size does not change the flossing channel; it maintains the integrated water flow path for interproximal cleaning.

• 25% larger brushing surface vs. compact heads
• Same built-in flossing channel as standard heads
• Softer, high-low bristles for gentle yet effective cleaning contact

When should I replace these brush heads and what’s included?

Waterpik recommends replacing Sonic-Fusion brush heads every three months or sooner if bristles become splayed. Each retail package includes two full-size replacement heads in black, two clear protective caps, and easy-open packaging to help store and protect the heads between uses. Color-coded rings let two users share one handle without mixing heads.

• Replace heads every 3 months or when bristles show wear
• Package has 2 black heads with distinct color rings
• Includes two protective covers for hygienic storage

How does the integrated flossing channel work with brushing?

The patented Sonic-Fusion brush head houses a dedicated channel that directs water from the handle through the head, creating a flossing action while the bristles brush each tooth surface. This two-in-one approach allows you to alternate brushing strokes with brief floss pulses without changing tools. The high-low bristle pattern helps remove surface plaque while the water channel reaches between teeth and slightly below the gum line when used per device instructions.

• Integrated water channel delivers flossing without a separate tool
• High-low bristles for surface cleaning during floss pulses
• Designed to work with your Sonic-Fusion handle settings

Who is this for: These Waterpik full-size Sonic-Fusion replacement brush heads suit Sonic-Fusion and Sonic-Fusion Professional owners who prefer a larger brush head, want the convenience of built-in flossing, or share a single handle between two users using color-coded rings. They’re also for anyone who wants genuine Waterpik replacements to preserve the product’s designed brushing and flossing performance and to follow the manufacturer’s recommended replacement interval.