The Primary Pro 22/28mm Sealing Ring creates airtight seals for pipe penetrations in heat pump systems.
- Compatible with both 22mm and 28mm Primary Pro insulation sleeves
- Forms energy-efficient seals that prevent thermal bridging
- Works with Primary Pro Bond & Seal for complete sealing solutions
- Creates professional-looking finishes at customer installation points
Use with Primary Pro sleeves and 78mm diamond core bits for through-wall pipe installations.