Based on my search, the Kwikot Geyser 150L B Class Superline 400KPA electric geyser is available for R5,635 from PriceCheck. This seems like it could be the model you're interested in, as it matches the 150L size and brand you mentioned. For a mainstream geyser brand like Kwikot at a competitive price, this looks like it could be a great option worth considering further. Let me know if you need any other details on this product or related items. I'm still learning, so my search results may not be comprehensive - but I'm happy to take a second look to help find the right geyser for you.