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This is a R6-rated fiberglass "assembled" linear plenum box that fits a 30"-inch 2-slot linear diffuser grille. The standard height of our linear plenum boxes are about 12"-inches high. Please make sure to choose the correct manufacturer of your linear diffuser grille and slot thickness so we may provide the plenum box to fit your linear grille manufacturer specifications (if your manufacturer is not listed, please share your manufacturer submittal sheet with us). Keep in mind, we also manufacturer these "knocked-down" for distributors who wish to save space for warehousing and for those who rather build the prefabricated plenum box and use the can stock flanges out. We have "knocked-down" versions listed on our website for sale.
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We currently ship within the US, with more countries coming soon.
Final cost and dates are confirmed at checkout.
🇺🇸 Ship from USA · On Agora since 2025
$85.29