Parts

Sigma Brass 1/2" Thermostatic Cartridge Holding Nut 18.30.093

Simply Safe Thermostatic Cartridge Lock Nut 18.30.154

Sigma Brass Faucet Nipple Holding Nut 18.07.044

Finding Parts

Sigma Faucet Parts is the official factory-authorized agent and nationwide specialist on Sigma faucet parts.

We carry thousands of Sigma faucet parts. Our website only has some of the parts that we offer. We can help you find the parts that you need.

Call, text message, or email us anytime. Please provide photos of what you need, the age of your shower or faucet, and your contact information.