Description
R1234yf Refrigerant Gas – 5 kg Cylinder | Automotive UK
Refrigerant Gas Supplies Ltd, based in Wakefield, Yorkshire, supplies R1234yf in 5 kg cylinders with automotive MAC-grade purity (99.9% minimum) and an ultra-low GWP of just 4. R1234yf is mandatory in all new UK passenger vehicles manufactured since January 2017 and requires specialist AC equipment with a dedicated R1234yf valve connector. Next-day delivery is available across mainland UK.
R1234yf is the new ultra-low GWP automotive refrigerant replacing R134a in all new cars. This 5 kg cylinder is the preferred size for automotive workshops and service centres.
Key Specifications
- Net weight: 5 kg per cylinder
- Cylinder type: Dedicated R1234yf cylinder — unique valve fitting
- Purity: 99.9% minimum, automotive MAC grade
- GWP: 4 | ODP: 0
- Safety rating: A2L (mildly flammable)
- Valve: R1234yf specific connector (not compatible with R134a equipment)
- Delivery: Next-day availability across mainland UK
For older vehicles manufactured before 2017 that use R134a, see our R134a 13.6kg cylinder for HVAC and automotive applications. Browse our full refrigerant gas range for all available cylinders.
Frequently Asked Questions
Which cars require R1234yf refrigerant?
All new passenger vehicles manufactured and sold in the EU and UK from January 1st 2017 are required to use R1234yf (or equivalent low-GWP refrigerant) in their air conditioning systems. Many premium vehicles including BMW, Mercedes, and Audi switched earlier, from 2013 onwards.
Is R1234yf compatible with R134a equipment?
No. R1234yf requires dedicated AC service equipment with a specific R1234yf valve connector. R1234yf cylinders use a different fitting to prevent cross-contamination with R134a. Do not attempt to use R134a equipment with R1234yf refrigerant.
Where can I buy R1234yf in the UK?
Refrigerant Gas Supplies Ltd supplies R1234yf 5 kg cylinders to F-Gas certified automotive workshops across the UK with next-day mainland delivery. R1234yf is also available from some larger distributors, though supply can be restricted for new customers at some suppliers.

