Chihiros CO2 Connector UNF to UK W21.8

Chihiros CO₂ Connector (UNF to UK W21.8) is a high-quality adapter that allows you to connect CO₂ regulators with a UNF (United National Fine) thread to CO₂ cylinders with a UK W21.8 valve—commonly used in many countries.

Key Features

• Converts UNF thread to W21.8 (UK standard)
• Precision-machined metal construction for durability and leak-free connection
• Corrosion-resistant finish ensures long-term performance
• Ideal for Chihiros regulators or other UNF-threaded equipment

Dimension : 2.9cm diameter x 2.2cm Length

This adapter is perfect for aquarists who need to match different CO₂ equipment standards without replacing their entire setup.

Note : Chihiros Regulator is NOT INCLUDED. Video show how to use this connector on the Chihiros CO2 Mini Regulator.