Repair or replacement of faucet components, rather than replacement of the entire unit, saves money and resources. Zurn's handle nut assembly (Part no. G60561) is made for AquaSpec metering faucets. AquaSpec faucets contain a unique, heavy-duty quarter-turn ceramic disc cartridge. The cartridge is so durable, you can expect it to last up to one million cycles. When you need a replacement part for repair or maintenance of a faucet, trust Zurn for genuine, reliable parts.