Mc Carbon Dioxide Bottle Cap Silicone Sealing Ring Diy Aquarium Fish Tank Co2 Generator System Kit

Description: Name: Bottle Cap

Color as shown Material: PC polyester Size: 3.5cm Applicable: All carbonated beverage bottle mouths, regardless of size (please note that juice bottles and mineral water bottles must not be used) features: If the plants in your fish tank/aquarium are slow growing and need more carbon dioxide, this bottle cap can help

Packing list: 1 x Bottle Cap Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.  Manual measuring,please allow 1-3mm error,thank you.