Description A.Y. McDonald 1500 Series Deep Well 4" Two Pipe Ejector Package - 3/4-1 HP Baker Water Systems Multi-Stage Deep Well Jet Ejector — Two Pipe (4" Well Casing). 1" Drive Pipe and 1-1/4" Return Pipe. Add "L" to model number for less foot valve. For better efficiency, use increasing fittings to allow 1-1/4" drive pipe. (2" well casing serves as the drive pipe.) Technical Details Heavy-duty jet pump component manufactured to industry standards with high-quality materials ensuring long service life and consistent water delivery performance. Incorporates precision-engineered design for maximum efficiency, corrosion-resistant construction for durability, and universal compatibility with standard residential and commercial water systems requiring reliable pressure and flow. Datasheets Jet Pump Accessory Guide