This pillow can be used as a replacement for waterfall pillows on most Hydropool Self-Cleaning Hot Tubs & Swim Spas produced after November 2015.
It is held into place with a tongue & groove design on the side of the pillow.
If you're not sure this is the product you're looking for, please contact us on 01202 911800 or e-mail sales@hydropooldorset.co.uk for support.