We may earn a small commission on purchases made through our links.

Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.

x
Sorry, Something went wrong!
Onylraep

1-350 Double Check Backflow Preventer,Double Check Valve Assembly

✅ In stock
F
Grade
💤 Not a Deal
0/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$219.00
Listed $25.99
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 20, 2026 3:04 AM · Prices & availability subject to change

Is This a Good Price on Amazon?

💤 Not a Deal
  • 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
  • ➡️Pricing has held fairly steady, with no strong push in either direction.

How We Scored This Deal

Price Competitiveness 0/28
Recent Value 0/22
Market Standing 0/20
Deal Strength 0/20
Momentum 0/10

📝 Product Overview

🏪 Sold by Onylraep
📦 Fulfillment Fulfilled by Amazon
🚚 Shipping Free Shipping

Product Details

Backflow and Back-siphonage Prevention: The double check backflow preventer is designed to to prevent siphonage and backpressure backflow. Very suitable for irrigation contractors It ensures unidirectional flow within the pipeline, making it an ideal choice for continuous pressure piping systems, cross-connections, and service line entry points.
Safety and Reliability: The 350 Double Check Valve Assembly utilizes two check valves in series. If one valve fails to close due to malfunctions (e.g., stuck disc or seal failure), the second valve remains operational to prevent backflow, thereby ensuring enhanced system safety.
Sturdy and Durable Materials: The Durable Stainless Steel Valve and reinforced nylon construction balance longevity and practicality. Capable of withstanding harsh outdoor conditions, the detachable design ensures optimal performance even in extreme winter environments.
Easy Installation: 1" Backflow Preventer Enables Quick & Easy Installation, Allows for Easy Pipeline Flushing, Simplifies In-Line Maintenance, and Supports Indoor, Outdoor & Vertical Mounting
Convenient and stable: The stainless steel valve and heavy-duty brass valve body ensure durability, and the removable design allows you to get through winter easily without worrying about the valve body cracking due to freezing.

⚙️ Specifications

Material
Bronze
Brand
Onylraep
Item dimensions L x W x H
17 x 4.13 x 5 inches
Exterior Finish
Bronze
Inlet Connection Size
1 inches
Inlet Connection Type
Flange
Outlet Connection Type
Flange
Number of Ports
2
Outlet Connection Size
1 inches
Specification Met
ASSE 1013
Brand Name
Onylraep
F
$219.00
Check Deal →