• Replacement CO2 diffuser disc, high-density with silicon sealing , does not easily block.
• Tow sizes available : Dia. 3cm/ 1.18" . 2cm/ 0.79"; Each Pack comes with 10pcs.
• Helps to ensure receive proper amounts of CO2, improve the growth and health of your with sufficient CO2 supply.
• The CO2 diffuser disc must be screwed as tight as possible when installation.
• Notice: The CO2 diffuser may release big CO2 bubbles during its first 1-3 days of usage. When ceramic disc becomes saturated with water, it will then release fine CO2 bubbles, this is normal and may take up to 3 days.

Ceramic Disc