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4" Z-Vent Firestop Spacer is used as a fire stop when running pipes vertically and penetrating a combustible floor or a ceiling. Required by most local codes when vertically venting a tankless water heater.
Technical Specifications:
Technical Specifications:
- For Z-Vent Pipe Size: 4" (also fits other pipes w/ actual OD of 4")
- Max. Temperature: 480°F (249°C)
- Material: AL29-4C
- Certifications/Standards: UL listed for USA and Canada, meets UL 1738