Air to Air or Air to Water?

[avbcon12]

tell me, why shouldnt I buy this???? the Tial BOV looks to be exactly the same unit and retails for over $200. I know its probably made in china but also comes with a lifetime warranty.

http://app.infopia.com/Shop/Control/Product/fp/vpid/2763797/vpcsid/0/SFV/31982