AC Infinity clear plastic humidity dome propagation kit with adjustable vents and a black tray holding green seedlings.

AC Infinity humidity dome propagation kit. Black 40-cell tray, clear gloss dome, vents, and all dimensions shown.

Exploded view plant propagation kit: humidity dome with vents, optional height extender, seed tray with drain holes, drip tray.

AC Infinity domed seedling tray with clear humidity dome, black propagation tray, and small green plants.

Clear humidity dome with adjustable vent for maximum light exposure and controlled humidity.

Black seedling tray with embossed compartments and a diagram of a blue water droplet icon.

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AC Infinity 5" x 8" Humidity Dome Propagation Kit

Price:

$36.99 USD

Pay as little as
$3699/mo

for a term that suits you, up to 36 months.

This item does not qualify for free shipping.

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MODEL: AC-HDA5

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AC Infinity 5" x 8" Humidity Dome Propagation Kit - Height Extension

Struggling to get your seeds to sprout or your clones to root? The AC Infinity 5" x 8" Humidity Dome Propagation Kit creates the perfect high-humidity microclimate, giving your young plants the ideal start they need to thrive. This propagation kit is engineered to maintain the optimal moisture levels essential for successful germination and cloning. It features a tall, clear dome with a glossy finish for maximum light penetration, while adjustable vents give you precise control over humidity and airflow. The included height extender provides extra vertical space, making it perfect for developing clones as they grow. The durable, thick-walled base tray prevents leaks and supports your seedlings securely, ensuring a clean and efficient process from start to finish. This propagation kit is a foundational piece for any indoor garden, designed to work seamlessly with other AC Infinity grow tents and accessories.

What's Included

Vented Humidity Dome
Height Extender
40-Cell Seedling Tray
Durable Drip Tray

Features

💧

Controlled Humidity

Adjustable vents let you fine-tune moisture levels for optimal germination and rooting.

☀️

Enhanced Light Penetration

A crystal-clear, glossy dome ensures your seedlings get the maximum light they need.

🌱

Height Extender Included

Add extra vertical space to accommodate growing clones and taller seedlings with ease.

💪

Heavy-Duty Construction

A thick, robust base tray prevents leaks and provides stable support for up to 40 seedlings.

Specifications

Specification	Value
Total Length	14.24 in. (36.1 cm)
Total Width	9.09 in. (16.7 cm)
Total Height	6.57 in. (23.1 cm)
Total Height (with extender)	10.70 in. (27.2 cm)
Material (Dome)	PS Plastic
Dome Finish	Gloss
Material (Base Tray)	PP Plastic
Tray Thickness	1.5 mm
Material (Seed Tray)	PET Plastic
Cell Count	40
Total Vents	2 (4 with extender)

Support & Manuals

📄Product Manual

Warranty

This product is backed by a two-year manufacturer's warranty from AC Infinity. Please note that this warranty does not cover consumables or non-durable goods. All sales are final.

FAQs

How many seedlings or clones can this kit hold?+

The included seedling tray has 40 individual cells, allowing you to propagate up to 40 plants at once.

Is the height extender necessary for seedlings?+

While not strictly necessary for new seedlings, the height extender is highly beneficial for taller sprouts and is ideal for giving clones the vertical space they need to develop without touching the dome.

How do the adjustable vents work?+

The dome has rotating vents that you can open or close to control airflow. This allows you to gradually reduce humidity as your plants harden off, preparing them for the open-air environment of your grow space.

Can I use a seedling heat mat with this dome?+

Yes, this propagation kit is perfectly compatible with seedling heat mats. We recommend the AC Infinity Suncore S3 Seedling Heat Mat for consistent warmth to encourage faster germination.

What makes this different from other propagation kits?+

This kit is part of the trusted AC Infinity ecosystem, known for quality construction. Key features include the extra-thick, durable base tray, a height extender for versatility, and a high-clarity dome for optimal light. For more tips on getting started, check out our in-depth guide to AC Infinity kits.

Shipping & Returns

Order Processing & Shipping

We currently ship within the United States only. No international shipping is available at this time.

Order Processing:

Most orders are processed within 24-48 hours after being placed.

Some products may have extended processing times of 7-14 business days or more, which will be clearly indicated on the product page. If your order includes such items, you will receive an email from our team or be contacted directly to confirm the estimated shipping timeframe.

Shipping Times:

We partner with reliable national carriers to deliver your orders. While specific delivery times can vary, here's a general timeframe for each carrier:

USPS: Typically delivers between 9:00 AM and 5:00 PM, Monday through Saturday.
FedEx: Typically delivers between 8:00 AM and 8:00 PM, Monday through Friday, with some Saturday deliveries.
UPS: Typically delivers between 9:00 AM and 7:00 PM, Monday through Friday, with some Saturday deliveries.

Note:

These are estimated delivery hours and may vary depending on your location and specific delivery circumstances.
For the most accurate delivery information, please refer to the tracking details provided once your order has shipped.

Free Shipping

Free shipping on qualified items to the lower 48 states. Some that are not eligible are stated on their respective product information page. Learn more

Refunds & Returns

Cancellations are accepted within 24 hours of placing an order.
Returns are subject to each manufacturer's return policy. Please look into the return policy of the brand prior to ordering. Learn more

AC Infinity 5" x 8" Humidity Dome Propagation Kit