Thread size: 1 x thread conversion adapter (TR21-4 female to TR21-3 male). Wide Application: CO2 brass cylinder adapter suitable for most TR2 standard CO2 bottles on the market (need to confirm the thread type of bottle), it is an ideal accessory for Quooker Cube users.
eBay
1xAdapter forSoda TR21-4 Converted for TR21-3 for Quooker Cube，1 Protective Cover. For Material: Constructed from robust brass, this fitting is designed to withstand high pressure andfor ensure longevity, providing peace of mind in your installation.
eBay
1xAdapter forSoda TR21-4 Converted for TR21-3 for Quooker Cube，1 Protective Cover. For Durable Material: Constructed from robust brass, this fitting is designed to withstand high pressure andfor ensure longevity, providing peace of mind in your installation.
eBay
Thread size: 1 x thread conversion adapter (TR21-4 female to TR21-3 male). Wide Application: CO2 brass cylinder adapter suitable for most TR2 standard CO2 bottles on the market (need to confirm the thread type of bottle), it is an ideal accessory for Quooker Cube users.
eBay
eBay
eBay
1 x Gewinde wandelt Adapter weiblich G3/4 in männlich W21,8 um. Material: Kupfer.
eBay
Thread size: 1 x thread conversion adapter (TR21-4 female to TR21-3 male). Wide Application: CO2 brass cylinder adapter suitable for most TR2 standard CO2 bottles on the market (need to confirm the thread type of bottle), it is an ideal accessory for Quooker Cube users.
eBay