Grant Air Hose Fks35 Low Level 75Mm

Suitable for all internal models

Grant Air Hose 75mm – FKS35

Genuine 75mm Air Hose for Grant Low-Level Flue Systems

The Grant FKS35 Air Hose is a genuine 75mm flexible air intake hose designed for use with Grant low-level balanced flue systems. This essential component forms part of the combustion air supply system, directing external air into the burner for safe and efficient combustion.

Manufactured to fit securely within the 75mm air intake path, the FKS35 is ideal for ensuring an airtight and reliable connection between boiler components and the flue terminal. Whether you're replacing a perished hose or upgrading during maintenance, this part is critical to maintaining proper boiler function and fuel efficiency.

 Key Features & Benefits

• Official Grant Part – FKS35
  OEM-quality air hose designed for seamless integration with Grant low-level flue systems.

• 75mm Diameter Hose
  Sized for optimal airflow to the burner, ensuring clean and efficient combustion.

• Flexible and Durable Construction
  Made from reinforced, heat-resistant materials suitable for oil boiler flue environments.

• Supports Balanced Flue Performance
  Ensures sealed, controlled air intake—reduces flue gas recirculation and combustion issues.

• Quick and Secure Fitment
  Easily connects between flue and appliance with standard clamps or fittings (check boiler manual).

• Ideal for Repairs and Servicing
  A direct replacement during flue maintenance, hose inspection, or performance fault correction.

Compatible Grant Boiler & Flue Models

The FKS35 Air Hose is suitable for use with:

• Grant Vortex and Euroflame oil boilers using low-level balanced flue kits

• 75mm air intake flue configurations (selected models)

• Compatible with both internal and external boiler setups where 75mm air hoses are specified

Not sure if this hose suits your boiler or flue kit? Contact us with your model or serial number—we’re happy to confirm compatibility.

 When to Replace the Air Hose

Replace the FKS35 Air Hose if:

• The current hose is cracked, split, or perished

• There are signs of air leakage or poor combustion

• You're upgrading or reconfiguring the flue terminal setup

• You're completing a full flue service or annual maintenance

A compromised air hose can lead to combustion faults, reduced efficiency, or boiler lockouts—replacement is essential for safe operation.

Technical Specifications

• Part Number: FKS35

• Manufacturer: Grant UK

• Type: Flexible air intake hose

• Diameter: 75mm

• Material: Heat-resistant flexible polymer with wire reinforcement (model dependent)

• Application: Low-level balanced flue air intake systems

• Installation: Connects securely between appliance and air intake point using standard hose clamps

• Environment: Suitable for internal or external installations