AquaSpec, the Zurn Plumbing Products Group's commercial faucet line, incorporates quarter-turn ceramic disc cartridge technology. The Zurn commercial ceramic disc cartridge is a heavy-duty, one-piece modular drop-in cartridge that is interchangeable with both Zurn AquaSpec faucets and Chicago Faucets brand faucets. The Zurn cartridge is engineered for heavy commercial use and has a quarter-turn positive shut-off that eliminates the possibility of handles "softening"