![Hydropool Standard Pillow 8515018 Hydropool Standard Pillow 8515018](https://cdn11.bigcommerce.com/s-whbac/images/stencil/300x300/products/646/1669/DSCN0711__82161.1669923206.jpg?c=2)
This pillow is used on most Hydropool Self Cleaning Hot Tubs and Swim Spas produced from 2010-2015.
The store where I usually purchase my hot tub supplies was out of stock of this particular pillow. I was able to order online and had them delivered within the week!