Simmons 152 Cast Iron Well Seal, 4"Highlights: Well size i. d : 4 For submersible pumps Double hole & 1 1 4" x 1" drop pipe Slip top plate painted cast iron For effective seal against pollution and contamination of wells from surface drainage. Many state health departments have adopted codes which require the sealing of water wells. Well is perfectly sealed by expanding the high quality of rubber packet, drawing together the top and bottom castings by tightening of belts. Boxed