Upgrade your compatible soda maker setup with this external CO2 hose adapter kit, designed to connect a machine with a TR21-4 connection to an external CO2 tank with a W21.8-14 valve fitting.

The 1.5 m hose gives you more flexibility when positioning your external CO2 tank, helping create a neater and more convenient setup. The kit includes the hose assembly, TR21-4 adapter, sealing washers and O-ring required for installation.

This kit is specifically for W21.8-14 CO2 tank fittings and is not the same as a 5/8 fitting. Please check your machine and CO2 tank connection sizes carefully before purchasing.

Key Features:

External CO2 hose adapter kit
Connects TR21-4 machine side to W21.8-14 CO2 tank side
1.5 m hose for flexible positioning
Designed for compatible soda maker machines
Helps reduce the need for small CO2 cylinder changes
Includes sealing washers and O-ring
Quick-connect hose end
Ideal for external CO2 tank setups
Important: W21.8-14 fitting, not 5/8

Specifications:

Product Type: External CO2 hose adapter kit
Hose Length: Approx. 1.5 m
Machine Side Fitting: TR21-4
Tank Side Fitting: W21.8-14
Compatibility: Suitable for compatible soda maker machines using TR21-4 connection
Tank Compatibility: CO2 tanks with W21.8-14 valve fitting
Hose Colour: Black
Connector Colour: Brass / black / yellow
Important Fitment Note: W21.8-14 is different from 5/8

What’s in the Box:

1 x 1.5 m hose assembly
1 x TR21-4 adapter
2 x sealing washers
1 x O-ring

Important Information:
CO2 tank and soda maker machine are not included. This kit is only suitable for compatible machines and tanks with the correct listed fittings. Please confirm your tank valve is W21.8-14 and not 5/8 before purchasing. Installation should be done carefully and all connections should be checked for leaks before use.

What’s in the box
1 x 1.5 m hose assembly
1 x TR21-4 adapter
2 x sealing washers
1 x O-ring

SHOP

Soda Machine CO2 Adapter

External CO2 Hose Adapter Kit TR21-4 to W21.8-14 – 1.5m for Soda Machine