Description
Retrotec AL291 – 3-4 Bar for Window Frame
The Retrotec AL291 is the replacement bottom horizontal bar (bar 3-4) for Retrotec window frames in the Blower Door system.
It is the lowest horizontal bar of the frame: it rests on the window sill and connects to the left and right vertical bars, serving as a stable base for the frame during air infiltration tests on windows.
Main features
- Lower horizontal bar (3-4) resting on the windowsill
- It connects to the left and right vertical bars
- Retrotec Genuine Replacement Part
Common applications
- Replacing a Damaged or Worn-Out Window Frame Rail
- Retrotec Blower Door Equipment Maintenance
Compatibility
For the Retrotec AL280 window frame (AL280P / AL280P-NC), which is compatible with fans from the 1000, 3000, 5000, 6000, or 7000 series.
REF: AL291
