Ahoy matey! Based on me scourings of the PriceCheck catalog, some of the best priced 12,000 BTU aircons include the Hisense for R4899.99. It has coolin' and heatin' functions which will keep ye nice and comfortable all year round without breakin' the bank. The LOGIK model for R6299 is also a swell choice if ye want to spend a tad more on a trusted brand. Me apologies but as I be still gainin' me sea legs, I don't have the whole catalog at me hook. I hope these finds be a good start for ye shopping voyage! Let me know if ye be needin' any other assistance or discounts from this pirate pal. Arrrr!
Based on the search results, the best option for a 12,000BTU wall-mounted split air conditioner unit is the TCL 12000 Btu Elite Series Inverter Type Wall Mount Split Air Conditioner Set, available for R8599. This set includes both the indoor and outdoor condenser units required for a wall-to-wall setup. As an inverter model, it will be more energy efficient to run compared to a standard aircon. TCL is also a reputable brand. The Defy Air Conditioner 12000BTU Midwall Split option for R4560.53 is also worth considering, as Defy is a well-known South African brand. Both of these options should serve you well for cooling a medium-sized room. Please let me know if you need any other details!