5/4 in. x 6 in. x 18 ft. White Reversible PVC Trim Board (Nominal: 1 in x 6 in x 18 ft)
https://www.probuilderswarehouse.com/shop/1006661142-0-5-4-in-x-6-in-x-18-ft-white-reversible-pvc-trim-board-nominal-1-in-x-6-in-x-18-ft-1749088
https://www.probuilderswarehouse.com/web/image/product.template/1749088/image_1920?unique=29b5ff6
Brand: Unbranded
Model: 8270746
SKU#: 1006661142.0
Barcode: 317990925
