网页Amazon.com: Replacement Sofa Cushions. 1-48 of over 3,000 results for "Replacement Sofa Cushions" Results. Check each product page for other buying options. Price and other details may vary based on product size and color. Foamy Foam High Density 6 inch Thick, 24 inch Wide, 24 inch Long Upholstery Foam, Cushion Replacement. 350.