Description:

Built in bubble counter,Crystal clear
Made of quality glass,visually very appealing
Improve the growth and health of your plants with sufficient CO2 supply
1.57 inch / 4cm diameter, designed for tanks below 20 US gallons
Includs glass CO2 diffuser and suction cup.
Used to test and monitor the concentrate of the aquarium water plant tank.

Specification:

Material: Glass;
Size(LxDia.): approx.6.5x4cm/2.56x1.57 inch

Package Includes:

1 Piece Glass checker (2 Pack)