Well, i will be replacing my old Intex above 18ft diameter after 4 years. It was a salt water pool. Intex has a pool now the is resin coated and is called Ultra. Does anyone know that is good for a salt water pool. Looking going up to a oval or rectangle of 12x24. Any opions on the Intex pool that has a warranty of two years and priced is lower. The ones that are 5 years or more are running 4 to 5 k. Intex pools are around 2k.