So, I usually buy the 16 CLBs from Advance, and get 2-3 years out of them. $70 each.
This, is 1/2 the price, although the top connections look a bit off, I'd think it would work...
http://www.batteryclerk.com/products/sure-power-16cl-b-12v-18ah-sealed-lead-acid-battery.html
but I can't find a...