421R - Round built-in louver (Heavy version)
.webp "Round built-in wall vent")
421R - Round built-in louver (Heavy version)
Round built-in wall vent, is mounted invisibly in the wall opening with wall anchors. IS applied where aesthetics and firmness are important parameters.
/en/documents/web_010/?421r-product-information-sheet-61625.pdf
Product information sheet
Product information sheet
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