Siding Mounting Block, Octagon Siding Mounting Kit with Built-in Box, Siding Light Blocks for 1/2 inch Lap Double, Black and White(2 Pack)…: Amazon.com: Tools & Home Improvement
Arlington 8141DBL Siding Mounting Kits with Built-in Box, White, for 1/2 inch Lap Double Siding, 1-Pack - Electrical Boxes - Amazon.com
iMBAPrice 8141DBL-1 Siding Lamp Mounting Kits with Built-in Box for 1/2 Inch (0.5") Outdoor Double 4" Siding Lap 1/2" Vertical Double Siding Lap
iMBAPrice 8141-1 Vertical Siding Lamp Octagon Mounting Kit with Built-in Box for 1/2 Inch (0.5") Outdoor Vertical Siding LAP - - Amazon.com
Siding Mounting Block, Black Octagon Siding Mounting Kit with Built-in Box, Siding Light Blocks for 1/2 inch Lap Double: Amazon.com: Tools & Home Improvement
Amazon.com: Builders Edge 130110006001 Octagon Mounting Block, W X 6-7/10 in H, White : Industrial & Scientific