I've been watching this for a while and thought I'd snag one before the price starts going up as I read that last summer they were close to $100! Mine just came today though the pool is not quite ready for it.
https://www.amazon.com/gp/product/B00GSPHSRO/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B00GSPHSRO/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1