1PK Ply Gem 16-1/2 x 15-1/2 White Vinyl Mounting Blocks

The meter base J-Block is designed to mount large accessories such as hose racks and electrical meter bases. Manufactured with ultraviolet-stabilized color minimizing the effects of exposure to the elements. Compatible with all siding profiles. Rich textured appearance. Surface dimensions: 16-1/2 x 15-1/2 . Flange dimensions: 18-1/2 x 16-3/4 . J-Channel internal dimension: 1-1/4 .