I’m about to get a new spa-cover. My present spa-cover has got some cracks and they are no more good. I thought I’ll get a new one. I visited this website on my friends recommendation(
http://www.buyfactorydirectspacovers.com/ ) and saw 4 different types of spa cover : Economy, Elite, Premium and Ultra spa covers, with prices increasing in the respective order. I didn't understand what’s the difference between all the four. What makes the difference in price. Which one is better? Can anyone help me with an advice?