2pcs Aquarium CO2 System Tube Valve Guage Bottle Cap Aquarium Bottle

Detailed Description

Item type: Carbon dioxide cap
Material:ABS
Color: as picture
Size:Cap opening diameter 3.3cm; height 3.2cm
Function: Suitable for all kinds of DIY reactors, directly tightened carbonated beverage bottles, safe, durable, and air-tight.
Package include: 2pc