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OS&B Island Tub Drain Freestanding Bath Tub Drain (Rough-in)

List Price $233.75
Your Price $169.00
You Save $64.75 (28%)
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  • Sku ITD35
  • TypeOther
  • FinishOther
  • Dimensions9-3/8" diameter flange
    1-1/2" diameter tailpiece
  • ADA CompliantNo

The Island Tub Drain Freestanding Bath Tub Drain (rough-in) from Oakville Stamping & Bending Ltd.. allows you to install a Freestanding Bathtub in minutes.

No muss. No fuss. No kidding.

Your job just got easier.

“Now I can install my tub at the Trim stage rather than the Rough-in stage – no more damaged tubs… My tiler is happy because he can even run his tiles under the tub rather than having to cut around – huge time saver!”


  • Allows for freestanding Tub location to be defined at rough-in
  • Can be installed with Waterproofing Membrane (*bronte NobleSeal TS Recommended)
  • Designed to be installed in a 8" (1-1/2" outlet) or 10" (2" outlet recommended) joist space
  • ITD35 Island Tub Drain is supplied with brass Tailpiece and ABS Adapter Kit to attach to Waste/Overflow (Bath Drain)
  • Allows for freestanding Tub to be installed over finished floor
  • Simply attach the correct Tailpiece (supplied) or ABS Reducing Bushing (also supplied) to the bath drain and lower the tub into the specially designed rubber seal.
  • 18 Gauge Epoxy coated Metal Deck Flange
  • Certified for Canadian and US markets


  • Fine Thread 17G Brass Tailpiece - Attaches to 314 Series Direct/Offset Bath Wastes
  • Flanged 17G Tailpiece - Attaches to 314DC Series Cable-Drive Bath Wastes
  • ABS Adapter Kit (attaches ITD35 to ABS Bath Wastes)
  • Island Drain assembly with 1-1/2” DWV ABS Tailpiece
  • 2” x 1-1/2” ABS Reducing Bushing
  • Cutting template

Installation Tips

  • Use 6.5” hole saw to cut sub floor (not included). Cutting template included
  • Secure Deck Flange with 6 screws (not included)
  • Do not cut the brass Tailpiece as this may cause a leak
  • ITD35 is a Freestanding Tub rough-in (install before tile installation)

View Product Bulletin

View Installation Guide

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