36" Window Box Coco Moss Liner Only

This coco moss liner is 8" deep with built in moisture retention film at lower part of this form. Our coco moss liners are deeper than the steel frame (window boxes, hanging baskets and other planters using this form of inserts) to make sure the top of the liner will not slip under the top ring (rail) of the planter and spill soil and water but keep all inside. NOTE: This coco moss liner will fit 36" long window box that is 7" deep and 6.75" wide at the top (inside). Each liner has moisture retention barrier built inside.