The D3 is 3RU, has a fully enclosed top with spring-loaded latches; accepts optional keylock.
Heavy-Duty D Series Drawers - 3 Spaces
Fully enclosed with inside dimensions measuring 15 7/8" wide by 14 1/2" deep, the DC, D and TD series drawers feature spring-loaded latches and rugged, straightforward construction. Faceplates come with a black brushed and anodized or textured black powder coat finish. Drawers have a 50 lb. weight capacity.
Installed keylock available optionally, just suffix the desired part number with the letters "LK" when ordering.
Two, three and four space drawers have been updated to include no-slip drawer mat and rear cable grommet.