yes it is, my computation is basic as I'm making hasty decision on the spot while on the queue. There were only 10 units allocated, & there were more than 10 ppl on the queue, I got to make the call within minutes else I'll miss it..... I've failed to notice the filter for novita only last for 3600L... Learn something new today I did notice novita does not use the latest mesh titanium plates..Was looking at the cost and the design. Frankly speaking, I really like the novita water dispenser design that can be kept and concealed, really very neat and sleek. The normal flexible water dispenser kinda spoil the overall look....Ya, I'm kinda going more for the look than specs...The other thing I like abt novita is it is available in most big electrical stores, easy to get filter ( prefer to do it myself) provided novita is still in business...kekeke Well, already paid up, shall move on and not think it over again. Installation will be next friday... I've a 0.01M pre filter to the existing Elken RO water which to be replaced by Novita. Think I shall retain the pre filter and opt for the 7 stage filter in the future to lower down the maintenance cost. The 8 stage filter comes with 0.01M filter and cost $50 more. It cost lesser to replace my existing 0.01M pre-filter & it is an easy job. BTW, where is the novita manufacturer? In china?