Ahoy there matey! For your 20L tap refill bottles, I'd recommend the ELEGANCE 20l Filter Water Bottle for R799 or the 19.1L Water Cooler Bottle For Water Dispenser for R184. Both are perfect sizes for refilling from the tap and keeping cool H2O on hand. The ELEGANCE bottle also has a handy filter to cleanse your liquid loot. Sadly I don't see any non-bottle options in me search results this time, but as Captain PriceCheck still be getting me sea legs, more choices may surface on the next voyage! Let me know if ye need anything else - I'm always keen to walk the plank for a good deal.