Adjustable Double Tee Stem Blockout

Adjustable Double Tee Stem Blockout

The Adjustable Double Tee Stem Blockout is your one-size-fits-all solution for creating cavities in pre-cast double tees. This unique part is built to make running plumbing and cables easier and consistent.

Now, instead of purchasing supplies at various lengths, you can reduce your inventory to just one SKU.

  • Firm plastic design resists collapse during pour
  • Design allows halves to lock in place for added stability
  • Fully adjustable to create cavities up to 11 1/2″ long
  • Constructs a consistent, finished cavity every time
  • Durable, non-corrosive polypropylene construction
  • Made in the USA


Part No. Height Length Width Qty/Ctn
ATB300-000 2 3/4″ 6 7/8 – 11 1/2″ 5 3/4″ 20

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