2 One inch drains, one overflow pipe, inside black box, outside clearbox.
Comes with all fittings and nothing is broken or hardly used.
This was used on a 50 gallon with a single pipe.
Its to be good for 300 gallon per hour, however I have never seen that.
See photo, im sure they sell for over 120$ new, since this is almost new hows 50$ that's pretty fair im certain.
So all you see above in perfect working condition $50.00
http://www.eshopps.com/?page=PF_1800