I second www.poolsupplies.com, I order EVERYTHING from them, including a liner last year. Their prices are the best I have found anywhere.

They always ship quick. One time the accidentally sent me a wrong gasket, and they overnighted another one to fix the problem. Very nice to deal with.

Also, once you place an order, you are automatically placed on their mailing list and receive a catalog a few times a year.

I have been very pleased.