Icon 00437 Bottom Drain Holding Tank, 8 Gal.

This tank has reinforcements built right in so you can mount a toilet directly on top of it. The holding tank comes with a 3″ threaded fitting, 1-1/2″ Slip, & 7″ OD Toilet Flange. Constructed of tough ABS plastic for long service life. All seams are solvent welded.