Bootstrap Farmer Humidity Dome 5" Tall Extra Strength, 2 Pack, Propagation Seed Cloning Lid Vented for 1020 Tray Seed Starting Germination

If you want a cover for your 1020 bottom tray this is the way to go. Most other seed trays/covers/seed starting trays are made to only last a year or maybe two if you are lucky because they are cheaply made with very thin and brittle materials. Not this cover. I can tell it will last a lifetime as long as something heavy isn’t dropped on it.

These clear top fit standard-sized 1020 nursery trays, but they are much sturdier, thicker, stiffer and longer lasting that any others we have seen or used. I was skeptical at first due to the cost of these lids, but they seem to be a bargain as they last much longer than the typical cheesy thin and rapid-cracking lids I usually find.I will buy these again

These 6 inch domes are the most durable and highest quality you will ever find. They have identical “blackout domes” that I ordered directly from Bootstrap Farmer. Both are stamped “Made in the USA”!

These are made out of thick polypropylene (PP) in the USA (it is stamped on the bottom edge). They don't fit my Neversink Tools bottom trays perfectly, instead balancing on the top edges of the bottom trays. But they cannot slide off because the inner (Winstrip) trays are taller than the bottom trays that hold them. They certainly fit better than the flimsy plastic Jiffy tray lids I have been using! The Bootstrap Farmer humidity domes are translucent, not clear, which diffuses but undoubtedly reduces the amount of light reaching the seedlings. That is a potential downside, but fortunately I have some very bright lights https://www.amazon.com/VIPARSPECTRA-KS5000-Coverage-Spectrum-Commercial/dp/B09MTSY9G2?th=1 (which I highly recommend) that are easily up to the task. But if your light source is marginally bright enough, I would recommend buying clear humidity domes instead; or better yet, getting brighter lights (that is the best option.) I could have bought the Neversink Tools humidity domes (which fit their trays perfectly and are clear), but they don't have adjustable vents to regulate the humidity, and are slightly more expensive. Perhaps a toss up, but I wanted to try these to have the ability to reduce the humidity gradually (by adjusting the preinstalled vents) without resorting to some sort of wonky homemade lid spacers. If you aren't using inner trays (in the Neversink bottom trays), the Bootstrap Farmer domes would not work well with the Neversink bottom trays due to the risk of sliding off and damaging seedlings. All that considered, I recommend these trays for those with a bright light source seeking a truly durable humidity dome that has adjustable vents.

Very sturdy tops. Doubt I will have to ever replace these which makes them a great deal.

I really liked these while they lasted, and was hoping to buy more for next season. But it's been a bit under 1.5 years since I bought the first ones and they are now cracking and crumbling after intermittent use outside in our Northern California weather. I want to replace them, but $10 a piece does not compute at this rate. Will try some other solution.

Whoa. These ARE heavy duty. I needed to raise up a flat of seedlings a few inches to get them closer to their light so put the flat on TOP of one of these humidity domes. Rock solid. Absolutely Amazing!!! 100% worth the cost.

I use the humidity domes more for seed germination. Instead of buying a Burpee self watering 72 cell every spring for $25. I took a couple seasons to build a heavier duty system. 1.) The humidity dome: the material is good grade. It does seem to be manipulatable, but returned to shape after laying flat. The frosted/opaque look is a nice touch. The two top channels are that. You could set light strips on top. 2.) Heavy duty air prune flat: Probably around the same price as the hood. This is the part where Burpee systems usually only last a season. I found some with the open bottom(s) to wick water up a capillary mat. 3.) Bootstrap heavy duty tray: I haven't had an issue using them as water resevoirs with heat pads. I usually don't start over 2 flats at a time. Got the two pack to rotate different uses.