- pERFORMING iNSTRUMENTS
Improve Workflow on Every Duct








T-RULE
- WHAT WE DO
Why Switch To The T-Rule?
It’s the same reliable method you’ve always used, just engineered for speed:
Instant Width Readings: No more eyeballing or double-checking the tape.
Automatic Layout: It pinpoint your traverse points perfectly without a single manual calculation.
On-the-Spot Verification: Verify your points instantly and move to the next duct with confidence.
- PERFORMING INSTRUMENTS
DUCT TRAVERSE COMMISSIONER RULE (T-RULE)
This tool helps technicians to quickly measure duct width, pinpoint traverse points and verify already marked traverse points.
- PERFORMING INSTRUMENTS