This sale is for one 1-1/2" (1.5") Bulkhead for your Aaquarium and Pond project. This item is shorter than regular 1.5" bulkheads for use in the tighter space or when you need shorter stem. Made in the USA. Very high quality. Hole size: 2-3/8" diameter. Stem length: 1.5". Slip X Slip will fit standard 1.5" PVC Pipe or other slip PVC fittings. Includes Nut and Rubber Gasket. Made with high grade ABS