It s also missing the two stainless brackets at the top which were originally pop riveted in place but these are simple to make up.
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The ec300 egg crate eggcrate grille is a specialized custom product manufactured by architectural grille on site at our factory in brooklyn ny.
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Connols air eggcrate return and exhaust air grille frames are constructed of heavy gauge extruded aluminium alloy 6063 tempered to t5.
Aluminium egg crate core of 12 5 mm x 12 5 mm x 12 5 mm size is fixed rigidly to the frame.
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Hvac egg crate diffusers and louvers enable your hvac system to work more efficiently because they allow for optimum air low with minimal resistance.
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Polyaire model ec eggcrate grilles are normally used in ceiling return air and exhaust applications.
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Foam gasket is sealed around the back of the frame as option to avoid air leakage.
Rigid construction provides noiseless performance.
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The 12 5 x 12 5 x 12 5mm grid core is constructed of thin aluminium strips pressure welded.
A number of aluminum grid core options are available with varying grid spacing and depth to accommodate.
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Unlike traditional slotted vents single cell air louvers provide greater air intake capacity because they don t collect dust and debris as quickly.
The 80 series egg crate return grille is available in various mounting styles and features sturdy construction consisting of a heavy gauge aluminum grid core optional extruded aluminum borders and frames and a durable powder coat finish.
To be 100 correct the three mounting holes on the lower part of the grille would be square.
Consisting of linear bars that are machine cut and notched then bonded together to form a horizontal and vertical grid structure the ec300 model has uniform square opening.