Kerr's distinctive purple-colored 37.5% phosphoric acid gel is designed for maximum etching efficiency.

• Perfect viscosity. Stays where you place it.
• No separation. Delivery is always clean and easy.
• Vibrant purple color. Highly visible.
• Rinses clean with minimum effort. Easy to use.

Refill pack includes: 3 x 3g syringes, 30 dispensing tips