Specifications

• Spacing: 3 to 20 feet (0,9 to 6,1 m).
• Pressure: 15 to 70 psi (1 to 5 bar).
• Flow-by: 0 at 8 psi (0.6 bar) or greater; 0.1 gpm (0.02 m³/h; 0.006 l/s) otherwise.
• Installation: side or bottom inlet.
• Side inlet installation not recommended in freezing climates.

Dimensions

• 1/2" (15/21) female threaded inlets
• Body height:
  • 1802: 4" (10,2 cm) body height; 2" pop-up height (5,1 cm)
  • 1803: 4 7/8" (12,4 cm) body height; 3" pop-up height (7,6 cm) 
  • 1804: 6" (15,2 cm) body height; 4" pop-up height (10,2 cm)
  • 1806: 9 3/8" (23,8 cm) body height; 6" pop-up height (15,2 cm)
  • 1812: 16" (40,6 cm) body height; 12" pop-up height (30,5 cm)
• Exposed surface diameter: 2 1/4" (5,7 cm)