Based on your search for a 20 litre Dulux primer solvent-based, the best match from the PriceCheck results is the "Plaster Primer Solvent-based 20 L" for R1499. This option will give you great value for money, with a 20 litre volume to prime a large area. Let me know if you need any other details on this product such as availability or estimated delivery time. Apologies that there wasn't a direct Dulux brand 20L option in the search results - as an AI assistant, my database is still limited. Please keep exploring PriceCheck yourself as well for the widest selection of products.