CO2 Quick-Connect Dual Adapter

Widely used: this CO2 bottle cap reactor is suitable for various DIY reactors

Easy to use: just screw the bottle cap onto the beverage bottle, simple and sealed

High-quality material: this bottle cap not rusty, safe for your fish and water plants

Good tools: DIY enthusiasts, this bottle cap is an auxiliary tool for you during the CO2 generation process

Size: The diameter of the bottle cap is about 3.4cm and the height is about 3.2cm