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Our Selkirk Insulated Wall Thimble installs quickly and eliminates the need for using individual firestops. Interior plate has black matte finish. The round shielding acts as a radiation shield and provides the required 2" airspace clearance to combustibles. The two sections telescope to accommodate 6" to 11" wall thickness. Selkirk UT Chimney Pipe & Components Guide Measurement Chart: Selkirk Class A Insulated Wall Thimble Size Framing Dimensions 6" 12.125" x 12.125" 7" 13.125" x 13.125" 8" 14.125" x 14.125"
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🇺🇸 Ship from USA · On Agora since 2025
$191.99