8018501 Ceiling diffuser23 3/4 in (L) x 23;3/4 in (W)2 3/8 in tall neckFits 12 in;ductsPlastic constructionPlaque designWhite;colorWon't rust, corrode or fadeFlame;resistantR6 insulated50% lighter...
8018507 Ceiling diffuser23 3/4 in (L) x 23;3/4 in (W)Fits 14 in ducts2 3/8 in tall;neckPlastic construction50% lighter then;metalPlaque designT-gridWon't rust, corrode or;fadeMildew resistantBlack...
8018505 Ceiling diffuser23 3/4 in (L) x 23;3/4 in (W)Fits 10 in ducts2 3/8 in tall;neckPlastic construction50% lighter then;metalPlaque designT-gridWon't rust, corrode or;fadeMildew resistantBlack...
8018503 Ceiling diffuser23 3/4 in (W) x 23;3/4 in (L)Fits 6 in ducts2 3/8 in (L);neckPlastic constructionPlaque designWon't;rust, corrode or fadeMildew resistantAnti;staticBlack colorMade in USA
8018504 Ceiling diffuser23 3/4 in (L) x 23;3/4 in (W)Fits 8 in ducts2 3/8 in tall;neckPlastic constructionPlaque;designT-gridBlack colorWon't rust, corrode or;fadeMildew resistant50% lighter then...