The following navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
The Zurn Wilkins PI Post Indicator resilient wedge gate valve is used in fire sprinkler applications. Coupled with an indicator post (sold separately), provides a visual sign of the valves open/closed position.