Vortex Reducers

Vortex Ducting Reducers provide a reliable, airtight solution for joining ventilation equipment and flexible ducting of differing diameters. Whether you need to connect a 6-inch (150mm) inline fan to a 5-inch (125mm) carbon filter, or step down a main extraction duct to fit smaller intake ports, these adaptors enable seamless airflow transition across your entire grow room setup.

Engineered to handle airflow moving in either direction - from larger to smaller ducting, or vice versa - Vortex Reducers feature smooth, tapered internal walls. This gradual reduction minimises static resistance, drag, and air turbulence, allowing your extraction fans to maintain high efficiency and quiet operation despite changes in duct diameter.

Moulded from high-impact, durable plastic, each end features formed retention spigots that grip flexible ducting firmly, ensuring a secure, air-sealed joint when clamped.

Available in a full range of common step-down and step-up grow room sizes.

Pro-Tip: Always place your reducer as close to the smaller component as possible to maintain high air velocity through your main duct runs. Wrap the stepped joint with aluminium foil tape before tightening a Jubilee clamp to ensure a 100% airtight and odour-proof seal.

Key Benefits:

• Versatile Equipment Adaptor: Effortlessly connects fans, filters, silencers, and ducting of different standard diameters.

• Bi-Directional Airflow: Works equally well whether stepping airflow down into a smaller pipe or stepping up into a larger duct line.

• Tapered Aerodynamic Profile: Smooth interior transition reduces air resistance, turbulence, and fan strain.

• Lightweight & Durable: Rigid plastic body is completely rust-proof, resistant to high humidity, and easy to support.

• Secure Fit Spigots: Built-in lip ridges keep flexible foil, combi, and acoustic ducting locked in place during clamping.