Aquarium Co2 System Pro Tube Valve Guage Kit Bottle Cap Diy Air Diffuser Generator Tool Part Kit

Description: Name: CO2 reactor bottle cap Color: beige Material: ABS Size: The diameter of the bottle cap is about 3.4cm and the height is about 3.2cm Audience: fish and aquarium Features: 100% brand new high-quality carbon dioxide DIY reactor with quick-screw caps, suitable for various DIY reactors, directly screwed to carbonated beverage bottles for use, durable and air-tight Packing list: 1* 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.