Propagation Kits: AGRITAPE is the best source of bottom heat available due to its design, flexibility, durability, performance and relative low cost. AGRITAPE, custom designed to each customers needs, can be used for a few square feet or for several thousand. Available in 11" continuous width. 20 Amp control units in 2 convenient sizes: the AT-1 for up to 120' of 11" tape or the AT-Jr for up to 60' of 11" tape. AGRITAPE carries a 1 year limited warranty.