Novelty Poly-Pro Plastic Indoor/Outdoor Liner/Planter Flower Box, Black 36 inch - Walmart.com
No-Hole Plastic Planter Pot Liner | SilksAreForever.com
Natural Wood Square Planter Box with Plastic Liner 6" x 6" x 4"
Amazon.com: Plastic Liners for Wood Boxes (4.5”x 4.5”) Clear Plastic Liners for Planters l Plastic Liner Inserts for Planters (Sell in Pack of 12) (to fit Square 5" Planter) (L050505) : Patio,