Increase your germination success and grow bigger, healthier starts with HydroFarm's Mini Greenhouse Growing Station. Each germination station comes ith an 11" x 12" water tight base tray, a 72 cell insert, a HydroFarm 10" x 20" heat mat, a 2" humidity dome and instructions. The heat mat is UL listed and waterproof. Availability: Usually ships the next business day. Seed Germination Station with Heat Mat 63810464050Reg.: $34.95Sale price: $29.95 We guarantee satisfaction with everything we sell. Questions? Call us toll free at 877-898-6546. Mon. - Sat. 9-6, & Sun. 10-5 Mountain Time