Nova only offers one seat, the Nova 1000. This seat is an entry level seat, offering a price point most other brands can't touch in the electric bidet seat market. As expected with the lower price tag, the warranty is also lower. It comes with a 1 year full warranty. If you're looking for a seat that packs a punch without breaking the bank, Nova's bidet seat very well may be the perfect seat for you. As always, if you have any concerns or questions, don't hesitate to ask!