Active Air Premium Ducting, 4" x 25'

Move Air Without Losing It to a Weak Run of Ducting

Cheap ducting fails in the same few ways every time: it punctures when you bend it around a corner, it crushes flat under its own weight, or it tears the moment a clamp bites down on it — and any one of those problems can choke the airflow your whole room depends on.

Active Air Premium Ducting is built to avoid all three. This 4" x 25' length pairs a continuous corrosion-resistant helix wire with a 3-ply aluminum foil laminate wall, giving you a run that holds its shape, resists punctures and tears, and stands up to the heat coming off air-cooled reflectors and HVAC equipment alike.

It ships with two EZ Turn duct clamps already in the box, so a fresh run from fan to filter to reflector is ready to assemble the moment it arrives.

Key Features & Benefits

• 3-ply aluminum foil laminate wall — resists punctures and tears far better than thin single-layer ducting, holding up to daily handling and tight bends.
• Continuous corrosion-resistant helix wire — runs the full length of the duct for structural support, keeping the wall round and open under its own weight.
• 4" x 25' length — gives you a long, continuous run with fewer joints and connection points to seal or maintain.
• Rated for air-cooling and general HVAC use — suited to air-cooled reflectors as well as broader heating and ventilation applications in the same space.
• Two EZ Turn duct clamps included — lets you start connecting fan, filter, and reflector right out of the box without a separate parts run.
• Air pressure and velocity rated — engineered to handle up to 25 mm WG of pressure and roughly 4,900 ft/min of air velocity for serious exhaust setups.

Who Should Use This Premium Ducting

This 4" x 25' run suits any grower setting up or replacing ducting on an air-cooled reflector, inline fan, or carbon filter — especially anyone who's dealt with a cheaper duct collapsing, puncturing, or tearing loose at a clamp and wants a sturdier run that holds its shape for the long haul.

Building Out a Full Exhaust Run

Pair this 4" x 25' length with an Active Air Inline Duct Fan and Carbon Filter sized to the same diameter, and use the included EZ Turn clamps to seal each connection point. A continuous, well-clamped run keeps air pressure consistent from the reflector all the way to the exhaust point, so your fan and filter can both perform at the rating they're built for.

Frequently Asked Questions

What's included with the ducting?

Each length ships with two EZ Turn duct clamps, so you can start connecting it to your fan, filter, or reflector right away.

How is this different from standard ducting?

It combines a continuous corrosion-resistant helix wire with a 3-ply aluminum foil laminate wall, giving it more resistance to punctures, tears, and crushing than thinner single-layer ducting.

What air pressure and velocity is it rated for?

It's built to handle up to 25 mm WG (about 2,500 Pa, or 10" WG) of pressure and roughly 25 m/sec (about 4,900 ft/min) of air velocity.

Can I use it for more than air-cooled reflectors?

Yes — beyond air-cooled reflector setups, it's suited to general heating and ventilation applications wherever flexible, durable ducting is needed.

What size is this particular length?

This listing is the 4" x 25' run — check the diameter against your fan, filter, and reflector connections before ordering.