What is the size of the Chiroflow® Professional Waterbase® pillow? Customer Service Desk August 06, 2019 14:49 Follow The Chiroflow® pillow is a "Jumbo" size - it is 20" x 28" and will fit a standard or queen pillow case. Related articles What type of polyester filling is used in the Chiroflow® Elite Waterbase® pillow? Is my pillow hypoallergenic? How much water should I use to start off? Which side of the pillow do I sleep on? How long can the water stay in my pillow before it needs to be changed? Comments 0 comments Article is closed for comments.