
Measurements are not accurate. I have a 20x20” cover and an 18x18” cover and bought a 21x21” insert and a 19x19” insert. Both were too small for my covers. I ended up putting the 21x21” insert into my 18x18” cover. Will be returning the 19x19” insert for a larger size to fill my 20x20” cover. Aside from that, the pillow inserts are great and the price can’t be beat!

Navy Blue 18X18 Inch Outdoor Pillow Cover With Burlap Linen Trim And Tailored Edges - Phantoscope Farmhouse Decorative Throw Pillow.
35 Review

Farmhouse Chic: Set Of 4 Buffalo Check Plaid Throw Pillow Covers For Home Decor & Living Spaces!
30 Review

Set Of 4 Deconovo Textured Throw Pillow Covers - Lilac Spring 16X16 Inch, Solid Cushion Cover With Invisible Zipper For Sofa Couch Toss Pillows (No Inserts)
39 Review

HIRALIY 126 Inch Waterproof Outdoor Furniture Cover, Large Size Patio Furniture Covers For Winter, Durable Rectangular Patio Sectional Covers For Table Chairs, 126" L X 82.6" W X 27" H
32 Review

LOFTEK LED Dimmable Floating Pool Lights Ball, 16-Inch Cordless Night Light With Remote, 16 RGB Colors & 4 Modes, Rechargeable & Waterproof, Perfect For Indoor/Outdoor, Exhibition Decor, 1-Pack
38 Review

Small Seagrass Belly Basket By BlueMake - Perfect For Storage, Plant Pot, Laundry, Picnic & Grocery!
41 Review

Gulrear Portable AC Window Seal Kit - White 400CM/158Inch Hot Air Stop Exchange Guards With Zipper And Adhesive Fastener
38 Review

Heavy Duty Waterproof Aozzy Air Conditioner Cover For Outdoor Window Units With Adjustable Straps - 17" W X 12" D X 13" H Inches
31 Review