Got my catch can this week its a polished alloy universal one with two 15mm inlets at the top, one 8-10mm outlet on bottom/side but bo obvious way of emptying it, its a three part can with the top and bottom bolted on place but also silicon sealed? Feels as strong as sump sealer, im guessing ill need to blank the lower output off? As im only going to have two pipes coming back to it?