Whale Air Duct Fitting Unequal 'Y' Branch 90mm x 65mm x 90mm Black - DX9011B

Whale Unequal Y Branch Duct Fitting — Black (DX9011B)

The Whale Unequal Y Branch Duct Fitting (90 × 65 × 90 mm) — DX9011B is a genuine ventilation and heating duct accessory designed for use in caravan, motorhome, campervan, and leisure vehicle HVAC systems. Its unequal Y-shaped design lets you split airflow from a 90 mm main duct into one 65 mm branch and one 90 mm branch, making it ideal for systems where a main trunk feeds both a large duct run and a smaller vent. 

Key Features

• 🛠 Genuine Whale Accessory – Engineered to match Whale duct systems for reliable performance.

• 📏 Mixed Diameters – 90 mm main inlet with 65 mm and 90 mm outlets for flexible airflow routing.

• 🔀 Unequal Y-Connector – Splits airflow into branches of different sizes to suit varied vent routes.

• 🚐 Improved HVAC Distribution – Useful in ducted heating and ventilation systems with both large and small runs.

• 🔧 Easy Installation – Push-fit design for simple and secure joins.

Typical Applications

This unequal Y branch duct fitting is ideal for:

• Caravan and motorhome ducted heating systems

• Ventilation duct runs needing airflow to both main and smaller ducts

• Campervan HVAC installations with mixed duct sizes

• Any duct network where airflow must split into two different diameter paths

The unequal Y design allows you to feed a smaller duct run (e.g., to a secondary vent) while maintaining a larger main feed — improving flexibility in HVAC layouts.

Technical Specifications

• Brand: Whale

• Part Number: DX9011B

• Type: Unequal Y Duct Connector / Fitting

• Main Duct Diameter: 90 mm

• Branch Duct Diameter: 65 mm and 90 mm

• Colour: Black

• Application: Caravan & motorhome HVAC systems

• Material: Durable plastic designed for ducted airflow installations

Why Buy This Duct Fitting?

• ✔ OEM quality and fitment – Compatible with Whale duct systems.

• ✔ Flexible airflow routing – Allows feeding both large and smaller duct lines.

• ✔ Durable construction – Suited for caravan and motorhome environments.

• ✔ Simple to install – Push-fit connections for secure joins.

Using the correct unequal Y branch fitting helps ensure your heating and ventilation duct network is efficient and tailored to your vehicle’s layout — improving comfort and airflow precision throughout your space.