Items are unused but have been out of packaging. Upgrade your Bristan Artisan mixer tap with this genuine replacement valve cartridge, designed to ensure a perfect fit and optimal performance. The O-ring kit is a must-have for anyone seeking to maintain the impeccable functionality of their tap, crafted with precision to meet the high standards of Bristan's engineering. Ideal for both home and professional use, this compression fitting is part of Bristan's commitment to quality plumbing products. The package contains a pair of cartridges, making it a practical choice for those looking to replace or upgrade their existing fixtures with reliable, long-lasting components.