I ordered mine plumbed 2 1/2. with a 2 inch drain.
mine is a over the fender model. I would not say it was space saving. It is easy to keep clean. I have had mine in service for 2.5 years now.
They do not come with a relief valve. you will need to determine the best method for you to set that up.
they do not come with a blower connection, again you need to do that. I did mine with a 2.5 inch barb, 2.5 inch nut and washer and a gasket. It is very simple to do
blower filter is a issue. there isnt room in the tubes to put one in unless u elbow it facing down. Mine doesnt have one at all. I have a good external filter and the mytee tank comes with a nice basket on the intake side. so Im double filtered. No issues with this in 2.5 years.
