Drip-free washerless cartridge. 1.8 GPM (gallons per minute) maximum at 60 psi (pounds per square inch). Fits standard 8" installation. Meets cUPC (Uniform Plumbing Code Canadian) certification, NSF (National Sanitation Foundation)/ANSI (American National Standards Institute) 371, and NSF/ANSI 61-9 standards. ADA (Americans with Disabilities Act) compliant. For replacement cartridge see Related Items. Lifetime limited warranty.