Replacement Spa Pillows Our Replacement Spa Pillows are 12" x 12" and come with a weigh that hangs on the outside of the spa. These extremely comfortable pillows will add great comfort to any spa. The Deluxe spa pillow from Prestige Spa gives you the comfort of a pillow with durability to last. Move these spa pillows any where you like. Spa Pillows also work on patio, pool or beach chairs for added comfort!