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36in. Slate Grey Supreme Fiberglass Window Box

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Update your exterior with a maintenance-free 36" Supreme Fiberglass Window Box. Featured here in a chic Slate Grey finish, this planting container is great for all types of homes including urban condos and apartments. An extruded fiberglass construction makes planters adept in all types of climates for year-round applications. The material does not rot or mold when exposed to moisture, and even extreme heat and cold leave it altogether unfazed. As for watering, an easy drainage mat helps guide extra liquid to holes in the planter end-cap for reliable runoff. Optimal drainage and excellent air circulation yields healthy, flourishing plant and flower arrangements year after year.

Although not required, fiberglass planters are easy to clean and store as desired. Containers are remarkably lightweight and smooth finishing rinses off like a charm. For standard wall mounts, each online order includes (2) stainless steel brackets and bolts.

Choose fiberglass window boxes online from standard sizes and colors, or call to order customs measuring up to 14' long. Outdoor planters can also be painted by the user to match an existing color scheme.

36" L x 8 1/2" W x 9" H -Includes (2) Brackets 

Fiberglass Window Box Dark Green Dimensions Hooks and Lattice 

If you'd like a more decorative look to your windows, consider these wrought iron window box brackets below.  Simply locate our different styles on the right side of this page and click to review or add to your shopping cart.Using these shelf-like brackets allows your box to be mounted further from the wall frequently allowing clearance from window trims and other trim boards.
Wroght Iron Window and Flower Box Mounting Hardware
  • French Shelf Bracket Pair- creates a 8 1/4" Shelf

  • Scroll Shelf Bracket Pair - creates a 8 1/4" Shelf

  • French Shelf Bracket- creates a 11 1/4" Shelf
Finish: Powder Coated in Textured Black
Our line of Supreme Fiberglass Window Boxes come with wall brackets to hang your window box beneath a window on your home. Bolts are included, but if you are mounting the box to a stone/brick home, you will need to purchase lag shields separately. Diagrams are shown below so that you can see how the boxes are mounted to a wall and to a railing. To explore additional mounting hardware, including brackets for hanging the box from a railing, visit our Optional Brackets (For Fiberglass Supreme Boxes Only) page.

Fiberglass Window Box Installation from Hooks and Lattice