2Pcs Aquarium Multifunction Diy Co2 System Kit Generator Bottle Cap Fish Tank

Features: Material:ABS engineering plastic Color:Picture color Size:As picture show Product list:Quick screw cap * 2 Applicable to various DIY reactors, directly screwed on carbonated beverage bottles for use, safe and durable, no air leakage The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.