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34-350 3/4" 350 Double Check Backflow Preventer, 3/4 inch Double Check Valve Assembly, Compact and modular design, Prevent Backpressure and Backsiphonage
✅ In stock
F
Grade
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Oct 31, 2026 11:44 PM · 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
Pinruicore
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓🥇𝐇𝐢𝐠𝐡-𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧: The 3/4" 350 double check backflow preventer features two check valves in series. If one valve fails to close due to a fault, the second valve remains operational to prevent backflow, ensuring enhanced system safety
✓🥇𝐃𝐮𝐫𝐚𝐛𝐥𝐞 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬: The durable stainless steel and reinforced nylon construction offers a balance of longevity and practicality. The removable design can withstand harsh outdoor conditions, ensuring optimal performance even in extreme winter environments
✓🥇𝐂𝐨𝐦𝐩𝐚𝐜𝐭 𝐚𝐧𝐝 𝐌𝐨𝐝𝐮𝐥𝐚𝐫 𝐃𝐞𝐬𝐢𝐠𝐧: The 3/4 backflow preventer adopts a removable pressure vessel design, The compact design aims to reduce maintenance time and costs. And is serviceable off-line
✓🥇𝐄𝐚𝐬𝐲 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: The backflow preventer 3/4 inch can be installed quickly and directly, supporting both indoor and outdoor use, as well as vertical installation. 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
✓🥇𝐀𝐟𝐭𝐞𝐫-𝐒𝐚𝐥𝐞𝐬 𝐒𝐞𝐫𝐯𝐢𝐜𝐞: If you have any questions, please feel free to contact us at any time. Our after-sales service team will do everything possible to resolve any product issues you may encounter. Thank you for your support!
⚙️ Specifications
Material
Brass
Brand
Pinrui
Item dimensions L x W x H
12 x 4 x 4 inches
Inlet Connection Size
0.75 inches
Number of Ports
2
Outlet Connection Size
0.75 inches
Unit Count
1 Count
Manufacturer
Pinrui
Number of Items
1
Brand Name
Pinrui
Model Number
34-350
