Kent RO pearl is a very good model amongst all of its model. Even I bought this product 2 years before.I am happy with this product. Look wise it is so fantastic.In this two years I changed my candles 1 time only. Before I am going to buy water purifier 90% of my friends recommended me to buy this product.On other products you can not see the water level perfectly, but here you can easily know how much water level is there now.