I wouldnt buy either of those honestly. I would buy the Lifegard Aquatics Pro-max UV. I highly suggest you read this 2 page thread where I post all my reasons. In short it is a better unit and more serviceable, lower yearly cost, better flexibility for mounting etc.
Can your UV sterilizer be too big?
I am currently setting up a Reefer 425XL (112 gallon total system volume) and would like to plumb in a UV sterilizer primarily as preventative for algae/bacteria/dinos but it would be great if it also prevented fish parasites. I have watched the BRS videos and read the threads I could find and...www.reef2reef.com
This probably is a stupid question, but what is the pvc liner?