Watts 9DM3 CAN 1/2 in Dual Check Valve with Vent (No Box)
Watts 9DM3 CAN 1/2 in Dual Check Valve with Vent (No Box)
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The Watts 1/2 In 9DM3 CAN 1/2 Dual Check Valve With Vent is a backflow prevention device designed to protect potable water supplies from contamination in residential and commercial plumbing systems. Sized for 1/2 inch connections, this dual check valve incorporates a vent mechanism that allows air to enter the system if pressure drops, helping to signal a potential backflow condition while maintaining separation between clean water and non-potable sources. As a Watts dual check valve, it reflects the engineering standards this manufacturer is known for in the plumbing and water safety industry.
Installing a 1/2 inch dual check valve with vent like this one addresses a common concern for property owners: preventing contaminated water from siphoning back into the main supply line. This is particularly important in irrigation systems, boiler feed lines, and other applications where cross-connection risks exist. The vented design adds an extra layer of function by releasing water in the event of a check valve failure, reducing the chance of unnoticed backflow and helping maintain compliance with local plumbing codes that require backflow prevention on certain water lines.
This Watts 9DM3 CAN check valve is well suited for plumbers, contractors, and facility maintenance teams working on water supply lines that require dependable backflow protection at a 1/2 inch connection size. Anyone replacing an aging or failed dual check valve, or installing one to meet code requirements on a new system, will find this component matches the fit and function expected from Watts backflow preventers. It offers a practical solution for maintaining safe, contamination-free water delivery in both routine and code-driven plumbing applications.
📦 Shipping Information
United States Orders: Shipped via Canada Post. Estimated delivery: 4–7 business days (may take up to 10 business days if border delays occur).
Canadian Orders:Orders are shipped via Chit Chats. Estimated delivery is typically 2–6 business days, depending on destination and carrier processing times.
International Orders:Shipped with Chit Chats or Canada Post, depending on service availability. Estimated delivery: 7–15 business days (varies by destination).
Returns & Refunds Policy: We offer a 30-day return window. Items must be gently used, in their original packaging and not have major signs of use/damage
Customs Duties & Import Fees: Orders shipped outside Canada may be subject to import duties, taxes, or customs fees. For U.S. orders, all duties are pre-paid and included—no extra charges at delivery.
Disclaimer: At DaveyDooDeals, our products are sourced from trusted channels, including surplus warehouses, authorized distributors, and carefully selected clearance inventories. While many items are new and unused, some are reclaimed from decommissioned equipment or overstock. Each listing clearly states the item’s condition and any known defects. In the unlikely event that a defect is missed, our 30-day return policy has you covered.
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