Steel mounting brackets for FLX-HDPE-75 semi-rigid ducts,
commonly used in mechanical ventilation systems with heat recovery.
The bracket has a special narrowing at the top to keep the semi-rigid
ducting securely in place, preventing it from falling off.
The brackets are assembled as a set of 10 pieces (for 10 ducts)
The notches in the brackets make it easier to separate individual
pieces.