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- 34-350 3/4" 350 Double Check Backflow Prevent...
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Item #:
173892388
34-350 3/4" 350 Double Check Backflow Preventer,3/4 Backflow Preventer,Double Check Valve Assembly,Prevent Backpressure and Backsiphonage
Item #:
173892388
TMT 743
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
Order now and get it around Wednesday, August 12
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The 350 double check backflow preventer features a detachable pressure vessel design, aimed at reducing maintenance time and costs.
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What Stands Out
Dual Protection
The 350 Double Check Backflow Preventer ensures dual protection against backpressure and backsiphonage, safeguarding your water supply from contamination effectively.
Durable Construction
Designed with high-quality materials, this 3/4" Backflow Preventer offers exceptional durability and reliability, ensuring long-term performance and compliance with safety standards.
Easy Installation
The user-friendly design simplifies installation, allowing quick setup without professional assistance, making it ideal for both residential and commercial applications.
Product Details
| Exterior Finish | Stainless Steel |
| Inlet Connection Type | F |
| Number of Ports | 2 |
| Smart Home Compatibility | Not Smart Home Compatible |
| Item Dimensions | 12 x 4 x 3.75 inches (30.5 x 10.2 x 9.5 cm) |
| Inlet Connection Size | 0.75 Inches (1.9 cm) |
| Outlet Connection Size | 0.75 Inches (1.9 cm) |
| Size | 0.75 Inch (1.9 cm) |
| Material Type | Stainless Steel |
| Brand Name | Onylraep |
| Model Number | 350 Double Check Backflow Preventer |
| Manufacturer | Onylraep |
| Manufacturer Part Number | 350 Double Check Backflow Preventer |
| Unit Count | 1.0 Count |
| Included Components | 350 Double Check Backflow Preventer |
| Material | Stainless Steel |
| Brand | Onylraep |
| Item dimensions L x W x H | 12 x 4 x 3.75 inches (30.5 x 10.2 x 9.5 cm) |
Who Should Buy?
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Homeowners
Ideal for homeowners wanting to protect their plumbing system from contamination caused by backflow situations.
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Irrigation Systems
Perfectly suited for lawn and garden irrigation systems requiring reliable backflow prevention and pressure control.
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Commercial Properties
Essential for commercial properties seeking to meet local plumbing codes while safeguarding water quality.
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Non-standard Pipes
Not suitable for installations involving non-standard pipe sizes or configurations, which may complicate the setup.
Product Description
34-350 3/4" 350 Double Check Backflow Preventer,3/4 Backflow Preventer,Double Check Valve Assembly,Prevent Backpressure and Backsiphonage
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Customer Questions & Answers
-
Question:
What makes the 350 backflow preventer easy to maintain?
Answer: Its detachable pressure vessel design allows for off-line servicing, reducing overall maintenance time. -
Question:
Is this product suitable for outdoor use?
Answer: Yes, its durable construction ensures optimal performance even in harsh outdoor conditions. -
Question:
How does the double check valve enhance safety?
Answer: The dual check valve system ensures that if one valve fails, the second will still operate to prevent backflow.
Onylraep Check Valves 350 Double Check Backflow Preventer Editorial Review
The 34-350 3/4" 350 Double Check Backflow Preventer has received a mixed reception from customers. While some users have expressed satisfaction with the product's performance and fit, especially noting its successful installation in their irrigation systems and the cost savings it provided, others have raised serious concerns regarding its reliability and compliance with necessary certifications. Positive feedback highlights the preventer's effective functionality, with one customer specifically mentioning that it fits well in a standard irrigation box and has been trouble-free for at least two months. This suggests that for some users, this product serves its intended purpose effectively. However, significant skepticism surrounds the product's legitimacy, with reports of failed inspections due to the lack of a serial number and questions about its certification status. A customer explicitly stated that it appears to be a knockoff of a reputable brand (Wilkins) and warned against purchasing it based on the risks it poses to water safety. In summary, the experience with the 34-350 3/4" Double Check Backflow Preventer is polarized, with some praising its efficacy and savings, while others caution buyers against potential compliance issues and safety risks. **
Customer Reviews & Ratings
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Pros
- Effective functionality noted by some users.
- Cost-effective compared to other options.
- Fits well in standard irrigation boxes.
Cons
- Lack of certification raised concerns about safety and compliance.
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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TMT 743
Order now and get it around Wednesday, August 12
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Detachable pressure vessel design reduces maintenance time and costs.
- Prevents contaminated water from flowing back into the potable supply.
- Ideal for irrigation contractors and continuous pressure piping systems.
- Constructed from durable stainless steel and reinforced nylon for longevity.
- Easy installation and supports both indoor and outdoor use.
- Enhanced safety with two check valves in series for reliable backflow prevention.
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