Well, maybe a little extreme, but my Huben K1 pushed my GX CS3 to the max ... and it sprung a leak. I had to remove the included two piece black cylinder with the white filter accessory at the end of the hose. Is there a better replacement piece to catch moisture etc that is compact and easily serviced? Yes, the CS3 has the built in filter, but I had the CS2 black filter assembly and added for potentially a little more filtering. Is it worth adding something more than what the GX CS3 already has?