Selling this ASM G1 Skimmer. I have been using it for a while on my setup with great results, but decided to upgrade to a new SRO skimmer. I have done several mods that have really increased its performance. These include: mesh mod to the impellar, gate valve mod and increased airline size. I still have the old standpipe and sponge that you can have as well as some extra mesh and zipties in case you need to remesh. The footprint is about 9''x11'' and 19'' tall, but it depends on how you orient the pump and the gate valve (they twist). I soaked it in vinegar so its pretty clean. $100 shipped or $80 picked up in Haddonfield, NJ 08033. Preference will be given to pickup. PM me if interested.