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HHT Snap Lock Gas (SLG) Damper Extension (SLG-D-EXT) Extend the SLG damper for deep finish walls. The HHT Snap Lock Gas (SLG) Damper Extension (SLG-D-EXT) is a genuine OEM damper extension for SLG (Snap-Lock Gas) systems. It extends the SLG damper assembly for finish-wall depths between 7 inches and 30 inches. Key Features Designed for use with SLG (Snap-Lock Gas) systems Extends the SLG damper assembly for finish-wall depths between 7 inches and 30 inches 7" to 30" finish-wall depth Genuine Hearth & Home Technologies (HHT) OEM venting component Product Specifications Specification Details Product Name HHT Snap Lock Gas (SLG) Damper Extension Model / Part Number SLG-D-EXT Manufacturer Hearth & Home Technologies (HHT) Product Type Damper Extension Compatible Vent System(s) SLG (Snap-Lock Gas) systems Size / Dimensions 7" to 30" finish-wall depth Installation Notes For finish-wall depths between 7" and 30". DVP-HSM-B is also required and ordered separately. Install per the appliance and SLG venting instructions and applicable local codes.
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🇺🇸 Ship from USA · On Agora since 2025
$72.00