• Element
• 240V
• 4000W
• 1PH 
• 11-1/2"
• 2-1/2" square flange
• 2-1/2" square gasket
• 1-3/4" OC bolt holes
• Screw terminals
• For Hatco Boosters:
  • Compact (4, 24 KW; 12 KW)
  • Imperial/Powermite (24 KW; 12 KW)
  • Heavy Duty (12 KW).

Depending on your unit, order the correct number of elements it takes for your booster. Best practice is replace all elements at the same.