I bought mine from www.paradisepools.com.
I bought other items from them in the past and have no complaints although one time I had to call to find out when an item was being shipped (a month later) and it sounded like they forgot about me. The order came about 5 days later. They also claim that they have everything shown on their website in stock - which isn't true. But if you order early and pay by credit card you will be fine. They have the best prices I found on the internet.