Clear plastic seedling dome with vents, offering a greenhouse effect for plants.

Sunblaster seedling dome with vents, clear plastic lid, black tray.

SunBlaster 4" Seedling Dome with Vents - 10″ x 22″

Official SunBlaster Dealer Model: SL1400228

$9.99 USD

10 inch by 22 inch interior space fits standard nursery trays
Patented H-groove channel secures strip lights for uniform coverage
4 inch interior height accommodates taller vegetative growth
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Overview
Features
What's Included
Specifications
FAQ
Reviews

Who This Is For

You are scaling up your propagation area because flimsy covers keep buckling and crushing your delicate plant material
You are switching to a centralized lighting setup because your current fixtures keep sliding off your nursery trays

What We Found

The H-groove design really shines by locking light strips in place so you stop worrying about tipping hazards
We prefer these over standard domes because the reinforced plastic holds its shape after months of repeated use

What Users Say

Propagators who switched to these domes say they spend less time monitoring moisture because the vents hold humidity
Users who dealt with collapsing covers report that the rigid structure allows them to stack trays without accidents

SunBlaster 4" Seedling Dome with Vents - 10″ x 22"

Are unstable grow lights sliding off your propagation trays, or are flimsy covers buckling and destroying your delicate seedlings? Protect your investment and optimize early vegetative development with the SunBlaster 4" Seedling Dome with Vents. Engineered with a patented recessed H-shaped groove, this high-performance dome delivers exceptional structural strength while acting as a secure mounting channel that centers your lighting directly over your plants for perfectly uniform canopy coverage.

The SunBlaster 4" Seedling Dome with Vents takes the guesswork out of controlling moisture and airflow in your nursery. By creating a sealed high-humidity microclimate, it prevents rapid medium dry-out and shields fragile cuttings from sudden ambient temperature drops. Designed specifically to pair with high-output lighting, this professional-grade propagation canopy fits securely over Double-Thick, Quad-Thick, and virtually all industry-standard 1020 trays. Take full control over your germination success rates with a dome built to perform season after season.

Features

📐

Patented H-Groove

Recessed channel locks T5 NanoTech or LED strip lights securely in place for centralized overhead lighting.

💪

Reinforced Structure

Advanced heavy-duty construction resists bending, cracking, and accidental buckling common to cheaper standard domes.

🔄

Universal 1020 Compatibility

Sized to snap perfectly onto SunBlaster Quad-Thick, Double-Thick, and most traditional seedling trays.

🌬️

Adjustable Ventilation

Integrated top vents allow precise manual management of interior humidity levels and ambient heat buildup.

What's Included

SunBlaster 4" Seedling Dome with Vents

Specifications

Specification	Value
Internal Dimensions	10" W x 22" L x 4" D
Exterior Dimensions (Single Unit)	21.3" L x 11.0" W x 5.1" H
Shipping Weight	0.44 lbs

FAQ

How does the patented H-shaped groove assist with grow lights? +

The recessed H-shaped groove molded into the top of the dome provides a secure resting seat for your grow lights. This specialized track keeps compatible lighting strips perfectly balanced and centered, ensuring your entire tray receives optimal, uniform light distribution.

Will this dome fit standard 1020 propagation trays? +

Yes, it features a highly versatile design footprint. While engineered to perfectly complement the SunBlaster Double-Thick and Quad-Thick trays, it is scaled to standard greenhouse industry metrics and will comfortably fit almost any brand of 1020 tray on the market.

Does this product include the bottom tray or lights? +

No, this item consists of the clear vented NanoDome canopy only. Heavy-duty bottom propagation trays, baseline grow light strips, and seedling media blocks must be purchased separately to complete your customized indoor cultivation setup.

What are the exact dimensions of this seedling dome? +

The dome features an internal growing clearance layout of 10 inches wide by 22 inches long with a 4-inch depth. The exterior unit dimensions measure approximately 21.3 inches long by 11.0 inches wide by 5.1 inches high.

How does this dome help improve seedling success rates? +

The dome locks in essential humidity to protect fragile unrooted cuttings and sprouts. For the best results, we recommend using a SunBlaster Heat Sheet Propagation Heating Mat regulated by a Digital Heat Sheet Controller to maintain ideal root zone temperatures alongside manual airflow control.

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