Malco’s Fiberglass Duct Board Washers help to reinforce sheet metal components to fiberglass duct. Use with #8 screw for fastening components.
Features:
Features:
- For use with wire-reinforced ductboard
- Use with #8 screw for fastening sheet metal components to fiberglass duct
- Volcano washers seat flush to ductboard surface
- Washers are available with or without pre-applied Malco seals
- Washers with pre-applied seals (FLWS) are fast installing and assure a proper seal around hole puncture and wire reinforcement to prevent air leakage and whistling
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