Grant Outer Flue Seal Fks62 Horizontal Flue Black

approx 115mm dia

Grant Outer Flue Seal – FKS62

Horizontal Flue Seal – Black
Part Number: FKS62

The Grant FKS62 Outer Flue Seal is a genuine black rubber sealing ring designed for horizontal flue systems used in Grant oil boilers. Engineered to maintain a secure, weather-resistant seal between the boiler’s flue terminal and external wall sleeve, this seal helps ensure efficient combustion, prevents water ingress, and complies with safety standards.

Whether you’re replacing a worn seal or installing a new flue, the FKS62 is a critical component that guarantees safe and reliable boiler operation.

?? Key Features & Benefits

•  Genuine Grant OEM Part
  Precision-manufactured to Grant’s quality and fitment standards.

•  Creates a Reliable Weatherproof Seal
  Helps prevent rainwater or debris from entering the flue or property.

•  Durable Black Rubber Construction
  Built to withstand extreme temperature variations and long-term use.

•  Essential for Flue Installations & Maintenance
  Maintains flue integrity and supports correct air/gas flow.

•  Reduces Risk of Condensate Leaks
  Ensures airtight connection between flue components.

 Compatible Boiler Models

Designed for use with Grant Horizontal Flue Kits fitted to a range of:

• Grant Vortex Pro, Vortex Eco, and Vortex Utility oil boilers

• Grant Combi and System models with compatible flue terminations

• Always confirm with your boiler’s manual or engineer for precise flue model matching

 When to Replace the Flue Seal

• If the original seal shows cracks, brittleness, or loss of elasticity

• During routine annual servicing

• When carrying out flue replacements or upgrades

• After signs of condensate leakage or external draughts

Technical Specifications

• Part Number: FKS62

• Type: Outer flue seal

• Colour: Black

• Material: High-grade heat- and weather-resistant rubber

• Application: Horizontal flue systems for Grant boilers

• Position: Seals the outer section of the horizontal flue terminal