I'm looking for a 4 inch deep waste tank.  Anyone know where to find one this shallow?  I can't remember what the other dimensions are, but the trailer dealer we bought it from went out and measured an Outlaw conversion waste tank and It's either 4 or 4 1/2 inch deep.  Ours is set up the same way as far as bracings to accompany this size.  I'm thinking it was 19" wide and 86" long. 

I found one from Jazz that was the right dimensions except for the depth.  There's is 5 1/2".  I'm sure we can deal with 1 extra inch, but I'd like to find the "right" size since I know that Outlaw uses it.