The holes are pre-drilled in the diffusers.
The diffusers are secured by screwing through the slots into the C bracket. The Truaire slots come with the C brackets that slip into the bent flages and lock in.
Q: I am making the boxes the slot diffuser will slip into, how will the diffusers be secured in place? Should we put a flange on the box?Ī: Slot diffusers boxes have a flange (bent upwards, almost hemmed) on the long sides. Here is the performance sheet for these (CFM vs pressure drop): Q: What is the CFMs I can get from this unit? Thank youĪ: Depends on the size you are looking at and the fan pushing the air.
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