Not a product, it's just handful of pieces I put together one afternoon while I strolled through Home Depot.
If your tank water level is higher than the 'Y' splitter then this would probably work well for draining as well.
One small problem I have is with the hose I purchased. The big bulky plastic end hits the valve before I get it fully tight and as a result it leaks a little into the sink. Not a big deal really, but something to consider when you buy bits.