1020 Humidity Dome | 2.5"

Controlled Moisture for Seed Starting & Cloning

A low-profile humidity dome designed to support consistent germination and healthy early growth.

The 1020 Humidity Dome (2.5") helps create the right balance of warmth and humidity for starting seeds or taking clones. By maintaining a stable environment during the most delicate growth stage, this dome supports stronger, more reliable germination—without sealing plants into stagnant air.

Designed to gently rest on the rim of a 1020 tray, it allows for airflow control while preventing excess moisture loss.

Quick Highlights

• Low-profile 2.5" dome height

• Helps maintain consistent humidity for germination

• Two adjustable vents for airflow control

• Heavy-duty, reusable construction

• Easy-grip handle for lifting and transport

• Designed to rest on the tray rim (not airtight)

• Made from food-safe #5 polypropylene

Why Gardeners Use Humidity Domes

• Improves germination success rates

• Protects seedlings during early growth

• Reduces moisture loss in dry environments

• Allows controlled airflow to prevent damping off

• Easy to remove as seedlings mature

Product Details

• Dome height: 2.5"

• Outer dimensions: 21¼" x 11" x 2.5"

• Material: Food-safe #5 polypropylene

• Venting: 2 adjustable humidity vents

• Handle: Integrated, easy-grip design

Compatibility Notes

• Fits standard 1020 trays and plug trays

• Designed to sit on the rim of the tray (not sealed)

• Not compatible with pot-and-insert tray setups using 2.5", 3.3", or 5" pots

Use & Care

• Ideal for seed starting and cloning

• Open vents gradually as seedlings grow

• Not intended for use in direct sunlight

• Clean between uses to extend product life

A Simple Tool for Better Starts

This low-profile humidity dome provides the moisture control seedlings need early on—then easily steps out of the way as plants grow stronger.