Female Connector 1/2 Inch O.D. x 1/2 Inch NPT - Tube to Pipe - Fast and Tite tube-diameter_1.5" The front panel keypad is

The front panel keypad is used to move up and down each menu and enter or exit the submenus

and Pentair American D

Extensive laboratory and field tests have shown it to be very accurate and reliable

The lettering is 2 inch and 1 inch

This ceramic pool depth marker is printed with 4 M and has a smooth surface

Female Connector 1/2 Inch O.D. x 1/2 Inch NPT - Tube to Pipe - Fast and Tite tube-diameter_1.5" The front panel keypad isThis is a Parker Fast and Tite Female Connector, 1 2 Inch O. D. x 3 8 Inch NPT, Tube to Pipe. Parker's Fast and Tite fittings install in seconds without tools for a leak proof seal. Fast and Tite meets FDA and NSF 51 requirements for food contact.