i got my roor from Shisha International over on west 4th, dude hooked me up with a sick 7mm jumpoff. they got everything in there (thats where i get my spare volcano parts too) and are open late (2am) everyday.

they however dont really have a good selection of roor diffusers, ash catchers, downpipes, bowls etc so i got all that stuff around the block at new york smoke shop