288 Common Element Standard Vacuum Plug Tray - 5 Sheets of 288 Cells Each - 12x24 Configuration - Garden, Nursery, Greenhouse, Seed Starting - Walmart.com
512 Cell Heavy Duty Plug Trays – Harris Seeds
Riverstone 128 Plugs Hydroponic Seeding Tray (2-Pack) RSI-ST128 - The Home Depot
36 Strip (72 Tray) Plug Trays – Harris Seeds
How to size and use cell inserts for propagation in 1020 trays from Bootstrap Farmer - YouTube
Riverstone 128 Plugs Hydroponic Seeding Tray (2-Pack) RSI-ST128 - The Home Depot