4" Pelletvent Pro Ceiling Support Firestop Spacer, With Clamp_25367
4" Pelletvent Pro Ceiling Support Firestop Spacer, With Clamp Manufacturer's Model Number: 4PVP-FS
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4" Pelletvent Pro Ceiling Support Firestop Spacer, With Clamp Manufacturer's Model Number: 4PVP-FS