Tub Boxes

Product Description and Features

The Water-Tite Tub Box creates space for and access to tub traps and drains in slab foundations, with no chiseling of concrete required. Made of injection-molded high-impact plastic, this tub box forms a waterproof cavity in concrete, so a trap can be connected to the drain system. Simply invert the box over the drain rough, pour the slab, and cut out the box bottom prior to tub installation. Choose from small, large, and heavy-duty models, all of which come with pipe knockouts that are compatible with both 1-1/2-inch and 2-inch pipe. The large and heavy-duty models have three preset knockout locations, while there are no preset knockout locations on the small model.

  • Plastic forms that create access for tub trap and drain in slab foundation. No concrete to chisel. Simply invert box over drain rough, pour slab and cu out box bottom prior to tub installation
  • Creates access for tub trap & drain in slab foundation
  • California Residents: WARNING – www.P65warnings.ca.gov






Large 7″ Deep Box 11-1/2″ x 11-1/2″ Bottom ID (13 x 13 Top ID)




Small 6 1/2″ Deep Box (12″ x 8 1/8″ Top OD)




Heavy Duty 7-3/4″ Deep Box (14-1/2″ x 14-1/2″ Top OD) Injection Molded, High Impact Plastic with Pipe Knockouts Compatible with 1-1/2″ and 2″ Pipe. Bottom Panel Scored for Easy Breakout.


5 Pair

Don’t see the box you need? Call Customer Service at 800-888-8312.