Sure np, I bought mine from Drsfostersmith.com must of been on sale because they now want $359?

anyways I just google for the lowest prices, But I did find these guys. Free shipping over $150 even better than my deal.
Current USA 1/15 HP Prime Mini Chiller - Dual Stage - (2680) Chillers

For your larger growing system I would recommend a bigger chiller, mine perfect for my 8 buckets and small res etc. less than 50 gallon for the whole system.

Courtesy of IC Waterfarmfan.