Amazon has Duck Covers Essential Water-Resistant 76 Inch Square Table & Chair Set Cover on sale for $17.40
Shipping is free w/Prime
PATIO COVERS: Fits square patio tables & 6 patio chairs 76″L x 76″W x 32″H
One-year limited warranty
For harsher weather conditions, the Duck Covers Elegant or Ultimate patio furniture cover series are recommended
Designed to protect patio furniture from dust, dirt, sun, rain and mild snow
Water-resistant fabric is ideal for low to moderate moisture climates
Ultrasonically welded seams prevent water from penetrating the patio furniture cover