Hatchrite incubator

[Gose Platz Farm]

If you go to McMaster-Carr (mcmaster.com) and order a bag of 337 Buna-N o-rings 3" ID, 3-3/8" OD, 3/16" Width (part number: 9452K97) they will work flawlessly for your rolling bands and you get 50 per bag for $15

-Brad