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Steel Square Mount Installation Frames (21 Series)

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More About Steel Square Mount Installation Frames (21 Series)

The 21 Series Steel Square Mount Installation Frames by Hart & Cooley provide all-steel construction, and come in a golden sand enamel finish. They are used but not furnished with 24 Series Diffusers. They are not required when using 22 Series Butterfly Damper or 23 Series Opposed Blade Damper.
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Series 21 8" Installation Frame for #24 Diffuser
$19.82 each
Get it by Mon, Mar 18 - Mon, Mar 25
Get it by Mon, Mar 18 - Mon, Mar 25
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Series 21 10" Installation Frame for #24 Diffuser
$22.23 each
Get it by Mon, Mar 18 - Mon, Mar 25
Get it by Mon, Mar 18 - Mon, Mar 25
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