Humidity Dome with Height Extension 5x8 by AC Infinity — 40-Cell Seed & Clone Propagation Kit
AC-HDA5
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Pairs well with
The AC Infinity Heavy-Duty Humidity Dome 5x8 is a complete germination kit: a 3mm-thick clear dome, 40-cell seedling tray, and leak-proof drip tray, with clip-in height extension panels for taller clones. Adjustable rotating vents let you dial humidity from locked-in to fully vented as roots establish, and the 36.1 x 23.1cm footprint fits a tent shelf, bench, or windowsill.
Specifications
- Keep vents closed for the first days to hold humidity high while cuttings root or seeds crack.
- Rotate the vents open in stages once roots show — gradual hardening under the dome beats transplant shock later.
- Wipe heavy condensation off the dome walls. Water dripping onto stems is an open invitation for damping off.
- A small hygrometer inside the dome takes the guesswork out of vent adjustments.
How to Use It
Pairs Well With
Plugs, cubes, and everything else your starts need before they hit the main system.
Environmental MonitorsHygrometers and thermometers to track the conditions inside your dome.
TraysMore trays and saucers for the propagation bench.
Frequently Asked Questions
Does the height extension come included?
Yes. The clip-in extension panels are in the box — they lift dome clearance from 16.7cm to 27.2cm and add two extra adjustable vents.
How many seedlings does it hold?
Forty. The 5x8 PET cell tray drains excess water into the leak-proof drip tray below, so each start stays moist without sitting in a puddle.
Will it fit in a grow tent?
Yes. The footprint is 36.1 x 23.1cm, so it sits comfortably in a small propagation tent, on a shelf, or on a windowsill.
Can I use it without the extension?
Yes. Run the dome directly on the tray at 16.7cm of clearance with two vents, and clip the extension in only when your clones need the headroom.
Is it reusable?
Yes. The 3mm dome and 1.5mm base tray are built for repeated cycles — give everything a wash between rounds to keep pathogens away from new starts.
Give Every Seed Its Best Start
Heavy-duty propagation gear that holds humidity where you set it.