Direct-fit Replacement – Direct-fit cartridge for Kingston Brass KS3961BL and KS3962BL faucets, ensuring seamless functionality Duraseal Ceramic Design – Washerless ceramic disc cartridge provides smooth, drip-free ¼-turn operation Durable Brass Construction – Metal components resist corrosion, extending faucet life and performance Quick Cartridge Swap – Designed for easy removal and installation—no special tools needed Polished Chrome Finish – Matches faucet exterior perfectly for a clean, cohesive look