Amazon.com: Foamma 6" x 22" x 26" High Density Upholstery Foam Padding, Thick-Custom Pillow, Chair, and Couch Cushion Replacement Foam, Craft Foam Upholstery Supplies, Foam Pad for Cushions and Seat Repair :
Foam Supplies | Buffalo, NY | Colonial Foam Co
How to replace your couch cushion foam - Foam Solutions
Amazon.com: Prime Foam Couch Cushion Replacement Wrapped with Polyester Batting, High Density Couch Cushions Inserts with Dacron Fiber Layer,Upholstery Cushion Padding (6x24x24)
Restuffing Leather Couch Cushions and Foam Replacement
Back Cushion Fill – Finely Double Shredded Foam – ucprivatecourses
Wool Replacement Couch Cushion Insert | Home of Wool