Crystal Quest Water Leak Detector Smart Valve | Auto Shutoff for Water Coolers & Under-Sinks | Reliable Leak Detection, Made in USA, With & Without Connector, Easy Installation


This Leak Detector Smart Valve is used to detect a water leak within a water cooler and shuts down the water supply in order to prevent flooding. The sensor is mounted inside the cartridge area of the cooler. If it detects wetness from a leak, it shuts down the water supply at the control box. The Leak Detector Valve is a valuable tool in helping to prevent damage that can occur in the event that a leak occurs within the water cooler. 


• Smart valve instantly stops leaks at the source to prevent flooding and water damage. 
• Safe for your home and the planet with non-toxic, sustainable materials. 
• Meets strict safety and performance standards for reliable, long-lasting use. 
• Proudly manufactured in the USA to ensure top quality and support local jobs. 
• Simple setup with most water coolers and undersink systems—no complex installation required.


We are a trusted manufacturer of high-quality water filtration products, serving residential, commercial, and industrial markets for over 30 years. Our commitment to innovation, quality, and customer satisfaction has made us a leading name in water filtration. Proudly built in the USA, we offer cost-effective and reliable solutions to meet various water treatment needs.

Why Choose Us?

  • Decades of Expertise – Over 30 years of experience in water filtration manufacturing

  • Reliable, High-Quality Products – Designed for long-term performance

  • Versatile Solutions – Serving homes, businesses, and industries

  • Customer Support – Assisting customers in finding the right filtration system

  • Wide Range of Products – Tailored solutions for specific water concerns

We offer a variety of secure payment options to ensure a seamless and protected checkout experience. The following payment methods are accepted:

  • Credit & Debit Cards: Visa, Mastercard, Discover, Amex and Diners Club

  • Digital Wallets: Apple Pay, Google Pay

  • Online Payment Services: PayPal, Venmo

For your security, we do not accept cash, personal checks, money orders, or any other unsupported payment methods. All transactions must be completed through eBay’s secure payment system to protect both buyers and sellers.

If you experience any issues during the payment process, we recommend checking eBay’s customer support for troubleshooting or reaching out to us for further guidance.

    • Services: We ship via USPS, and UPS to home and business addresses.

    • Signature: No signature required

    To ensure customer satisfaction, we accept returns and exchanges under the following conditions:

    • Returns for refunds are accepted only on new, unused items in original packaging within 30 days of purchase.

    • A 30% restocking fee applies to all approved refunds.

    • Return shipping costs are the buyer’s responsibility.

    • Exchanges are accepted for defective products, product upgrades, or when working directly with us to find the best filtration solution.

    • Non-returnable items: Custom orders, special-order items, opened filter cartridges/membranes (for safety reasons).

    • Return Authorization: All returns must have an RMA number (contact us before sending any returns). Returns received without authorization may not be processed.

    We are committed to providing high-quality water filtration solutions and excellent customer service. If you have any questions about our products, shipping, or return policies, please feel free to contact us.

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Feel free to contact us for any support you may need! You can reach us through the eBay messaging service, by phone, or through our website. We're always happy to assist you!