Amazon.com: EZBeds Twin-Box-Spring, 7 inch Metal Twin Box Spring Only, Mattress Foundation Box Spring Twin with Fabric Cover, Easy Assembly, Noise Free, Non Slip : Home & Kitchen
Diamond Twin Box Spring | Living Spaces
Amazon.com: VTWAZAST Twin Box Spring with Fabric Bed Cover, 5 Inch Low Profile Heavy Duty Metal Structure with Easy Clean Cover, Non-Slip, Noise Free, Easy Assembly : Industrial & Scientific
Continental Sleep, 5" Wood Box Spring for Mattress Support with Simple Assembly, Twin - Walmart.com
Amazon.com: Bednowitz Twin Box Spring 2 Inch High & Bed Slat Replacement, Heavy Duty Mattress Support Metal Bunkie Board, Low Profile Bed Frame, Sturdy Steel Structure, Easy Assembly, Noise Free : Home
Zinus Metal Twin 7 in. Smart Box Spring HD-ABS-7T - The Home Depot
ZINUS Metal Box Spring with Wood Slats /4 Inch Mattress Foundation / Sturdy Steel Structure / Easy Assembly, Twin - Amazing Bargains USA - Buffalo, NY
Zinus Night Therapy 9" Wood and Metal Box Spring (Assorted Sizes) - Sam's Club