Greaton, Unassembled California King Box Spring for Cal King Bed – 4.5-Inch Wood Box Spring Only, Amish Made in USA, Quiet Noise-Free Replacement Mattress Foundation, Packed Flat, Easy Assembly(Gray)
Superay 2 Inch California King Box Spring Low Profile, Heavy Duty Metal Box Spring Bed Base, Bunkie Board Bed Slat Replacement, Mattress Foundation, Easy Assembly, Noise Free
EMODA 4 Inch California King Box Spring
THEOCORATE 7 Inch California King Box Spring, Metal High Profile Spring, Heavy Duty Mattress Foundation, Easy Clean Cover, Quiet, Non-Slip, Simple Assembly
Husleephu King Box Spring, 9 Inch High Profile Metal Box Spring King Bed Base with Fabric Cover, Sturdy Mattress Foundation, Easy Assembly, Noise Free, Black
Husleephu King Box Spring 8 inch
