The Brivis FLSHG 300mm S/PRO 21/23 (FL300SPRO2123) is a heavy‑duty flashing accessory engineered for 300 mm flue systems in the S/PRO 21‑23 series ducted gas‑heating units. This unit ensures safe, code‑compliant vent termination and long‑term reliability for modern multi‑zone homes.

• Part Number & Model: FL300SPRO2123 — compatible with S/PRO 21 and S/PRO 23 model series

• 300 mm Flue Diameter: Designed specifically for 300 mm flue systems to provide proper venting and installation compliance

• System Compatibility: Tailored for use with the Brivis S/PRO 21/23 series ducted gas‑heating units

• Durable Construction: Built from high‑quality materials for dependable performance in residential HVAC installations

• Installation‑Friendly: Features a secure, weather‑resistant termination design supporting safe operation and reducing maintenance

• Reliable Operation: Ensures effective exhaust of combustion gases and supports safe, efficient system performance

• Ideal for Modern Homes: A strong choice for homeowners or HVAC professionals needing a top‑quality, compliant flue flashing accessory for Brivis S/PRO 21/23 systems

This product offers a professional solution for safe and efficient flue termination in residential ducted gas‑heating configurations.