The American Plumber W15-PR Heavy-Duty Whole House Water Filter Housing is a 1-1/2" NPT cartridge housing designed for high-flow, whole-house filtration. It accepts large-capacity 4-1/2" diameter cartridges and uses a standard 10-inch cartridge length to treat water for an entire home. A built-in pressure-relief button aids safe cartridge changes, and the unit is rated for operation from 40°F to 100°F. External dimensions are roughly 7-1/4" in diameter and 13-5/8" tall, with 1-1/2" NPT ports for inlet and outlet connections, making it suitable for demanding residential and high-flow applications.
