KDK 4009UA Air Curtain — 90cm, 4m Projection
90cm air curtain — strongest 4m air barrier, sirocco fan, 2-speed. Up to 12 m/s.
Supplied and installed by us.
We source this unit and our HDB-licensed crew fits it — no juggling a separate seller and a handyman. One WhatsApp, one fixed quote, one team that's accountable for the whole job.
We'll confirm stock + bundle install if you need it. Most replies within minutes during work hours. Or add to cart and send a full order at once.
Installed by Singapore's most-reviewed home team.
You're not just buying the unit — our HDB-licensed crew fits it on the same quote, backed by the track record below.
- Faults? We come back
- We follow up after install
- 12-month workmanship warranty
Why we stock the KDK.
The KDK 4009UA is a 90cm air curtain with the range's strongest 4-metre projection and high velocity (up to ~12 m/s) — for very tall single doorways and demanding sealing. Sirocco fan, durable resin housing, 2-speed control. Air curtains mount above the doorway and are hardwired — SparkFlow's ME05 L1-licensed electricians supply, install and wire it (shopfronts, F&B, cold rooms, loading bays), with installation included in the quote rather than charged as an add-on. WhatsApp us your door width and height for a fixed supply + install price.
Key features
- Strongest 4m air barrier for very tall doorways
- High velocity (up to ~12 m/s) — firm seal
- Unique sirocco fan — durable resin housing
- 2-speed (Lo / Hi) control
- 12-month KDK manufacturer warranty
