Brand Ply Gem
Manufacturer Part Number UNIBLOCK EQ
Manufacturer Description GRAY UNIVERSAL J-BLOCK
Country of Origin Code United States of America
Material Vinyl
Surface Dimensions 8-3/16" x 8-3/16"
Color Gray
Flange Dimensions 7-1/2" x 7-1/2"
Rectangular Knockout 2-3/16" x 3-3/4"
Round Knockout 3-11/16"
J-Channel Inside Dimensions 1/2" Adjusts to 1-1/4"
Projection N/A
Package Quantity 1

More Information


The UniBlock, universal J-Block mounting block is used to install exterior electrical outlets, water faucets, light fixtures, mailboxes, house numbers, and doorbells. Richwood mounting blocks are built to withstand the toughest weather and retain their color and beauty over the life of the home. They will not chip, crack, or split. They are simple to install and have a 2-piece design that easily adjusts from 1/2" to 1-1/4". This feature allows for easy installation over many siding choices, including insulated vinyl siding. Limited lifetime warranty.

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