Seachem Glass Inline Diffuser Sizes:Pollen 13mm A is designed to

A is designed to

An uneven and unleveled surface can cause an aquarium to fail over time

Dehydrated Coconut

Creates random 40 degree circular wave patterns

Seachem Glass Inline Diffuser Sizes:Pollen 13mm A is designed to13mm Minimizes the visibility of CO2 equipment in the aquarium Ensures maximum dissolution of CO2 in aquarium water Allows for more consistent dosing of CO2 Compatible with 12 mm ID 16 mm OD hoses The 13 mm glass Inline Diffuser is a pollen style inline CO2 diffuser that is placed in the outflow line of the filter or aquarium pump to efficiently diffuse CO2 gas into the aquarium. This placement of the diffuser avoids the need for a diffuser in the