Have You Seen a UFO — Unidentified Faucet Object?
Do you have a mysterious, unidentified faucet object (UFO) lurking in your faucet? Fear not! Our team of top-notch UFO investigators is here to solve the enigma of your extraterrestrial tap cartridge!
Snap some photos of your unidentified cartridge against a clean, white background. Then, beam those images over to us via text message or email, and we’ll get to work researching the UFOʼs identity. Learn More ⟩
Frequently Purchased Parts
NEW! Shower System Replacement Program
Update Your Shower System Without Disturbing Valve Body or Shower Wall
After years of usage, wear and tear, plus accumulation of hard water minerals, your Sigma shower system may have lost its luster and not function efficiently. Update the look and function of your shower system by replacing the trim and parts of the valve, without disturbing your shower wall, to save time, money, and hassle.
- New Trim: Replace Shower Trim and Shower Head. You can even change Handles and Finish.
- New Cartridges: Replace old Cartridges and Valve Parts to make your shower valve work efficiently for another 15 to 20 or more years.
Contact us and provide photos of your shower system, and we will help you specify the right trim and valve parts.
Sigma Shower Valves and Parts
Parts for Showers
Parts for Sigma Showers
Parts for Faucets
Parts for Sigma Lavatory Faucets
Shower Trims
Sigma Faucet Valves and Parts
Sigma Cartridges
Sigma Stem Extensions
Sigma Pointer Assemblies
Pointer Assemblies
Sigma Shut-Off Valves and Parts
Parts Categories
Parts by Brand
Shop with Confidence
| Elegant | Our products feature elegant styling by expert designers. |
| Precise Engineering | Our engineers precisely specify each product. |
| Expert Craftsmanship | Highly-skilled craftsmen, with many years of experience, work to make each product an object of beauty. |
| Solid Brass | Our products are made from premium quality solid-brass components from Italy, Germany, and United States of America. |
| Precision | Our faucets and shower systems feature precisely-machined valves from Germany and France. |
| Finest Finishes | We offer a variety of the finest American metal coatings and hand-polished finishes. |
| Highest Quality | We only sell the highest quality products which are covered by our warranty. |
| Industry Standards | Our products are certified to meet or exceed the following codes and standards: ASME A112.18.1/CSAB 125.1-2011. |
| Brand New | All our products are brand new and covered by our return policy. |
| Secure Transactions | Our website is certified Level 1 PCI DSS compliant. The Payment Card Industry Data Security Standard (PCI DSS) is a security standard for organizations that handle credit and debit card information. |
| Free Shipping | Free shipping on most orders over $50 within the continental United States. |
| No Sales Tax | No sales sales tax, except in California. |
| Free Support | We are available to assist you with your purchase — and we are here to support you after you receive your product. |
| 100% Satisfaction | We are committed to ensuring you are 100% satisfied with our products and service. |
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Our products are designed, engineered, and built in United States of America. |
Sigma Faucet Parts: We are the factory-authorized, national, master distributer of original parts for Sigma faucets and shower systems. Proof of original purchase may qualify for special discounts.
Why Shop with Us
Official Sigma Agent
We are the official agent of Sigma and authorized national distributor of Sigma faucet parts.
Genuine Sigma Parts
We carry factory original Sigma faucet parts going back up to 25 years, even difficult-to-find parts.
Knowledgeable Assistance
We specialize in Sigma faucets and shower systems. We have the knowledge to help you.
What Customers Are Saying
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Thanks much for calling me and going over our shower issue. I don’t think I’ve ever had an experience where I got such a prompt and thorough response from support!
Alexandria, Virginia
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It was a pleasant surprise to call your company and immediately speak with a live person. I really appreciate your help. There are not many companies that offer the exceptional service that you do.
Buena Vista, Colorado
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Wow. I’ve been in the plumbing industry for a long time and that is amazing customer service. Amazing job and I greatly appreciate all the help. Thank you once again.
Sugar Land, Texas