WATTS T388002 Anti Siphon Pressure Backflow Preventer 313107040016 800m4
( Brand: Watts ), ( Manufacturer Part Number: T388002 ), ( Part Type: Pressure ), ( Inlet Connection Type: Female Npt ), ( Included Components: Valve ), ( Size: 1 Inch ), ( Pipe Size: 1 In ), ( Material: Bronze, Stainless Steel, Silicone, Plastic ), ( Maximum Operating Pressure: 1.5e 2 Pound Per Square Inch ), ( Product Dimensions: 9.5 X 8.5 X 4.5 Inches ), ( Inlet Connection Size: 1 Inches ), ( Batteries Required : No ), ( Valve Type: Vacuum Breaker ), ( Outlet Connection Type: Fnpt ), ( Style: Standard ), ( Exterior Finish: Stainless Steel ), ( Country Of Origin: China ), ( Item Weight: 5.68 Pounds ), ( UPC: 313107040016 )
Review WATTS Quart Series Inch Bronze Anti siphon Pressure Backflow Preventer
The Watts T388002 800m4 Anti-Siphon Pressure Backflow Preventer is a robust and reliable plumbing solution designed to safeguard potable water systems from contamination by preventing backflow a dangerous condition where non-potable water, chemicals, or pollutants reverse direction and enter the clean water supply. This high-performance assembly features a compact yet durable construction, engineered to meet strict industry standards, including those set by the American Society of Sanitary Engineering (ASSE) and the International Association of Plumbing and Mechanical Officials (IAPMO). The 800m4 model is specifically tailored for residential and light commercial applications, offering a seamless integration into existing water distribution systems while ensuring compliance with local plumbing codes. Its anti-siphon design incorporates a dual-check valve mechanism, which not only halts the flow of contaminated water but also prevents siphoning, a common issue in systems with varying pressure levels. The assembly is constructed from high-quality brass components, ensuring corrosion resistance and longevity, while its streamlined design minimizes pressure loss, maintaining optimal water flow efficiency. Ideal for installations where cross-connection hazards are a concern such as in irrigation systems, fire protection lines, or chemical storage setups the T388002 provides an extra layer of protection for public health and water quality. Its easy-to-install design, complete with threaded connections and a compact footprint, makes it a practical choice for plumbers and contractors seeking a dependable, code-compliant solution. Whether used in new construction or retrofitting existing systems, this backflow preventer delivers peace of mind by ensuring the integrity of the water supply against potential contamination risks.
### **Pros and Cons of buying a Watts T388002 800m4 Anti-Siphon Pressure Backflow Preventer**
#### **Pros:**1. **Effective Protection Against Backflow** The device is designed to prevent contaminated water from flowing back into the potable water supply, ensuring safety and compliance with plumbing codes.
2. **Durable Construction** Made with brass and high-quality materials, it is built to last under normal water pressure conditions, reducing the risk of leaks or failures over time.
3. **Meets Industry Standards** Likely complies with **NSF/ANSI Standard 61** and **AWWA C510**, ensuring it is approved for use in municipal and residential water systems.
4. **Easy Installation** Designed for straightforward installation in standard plumbing setups, though professional help may still be recommended for complex systems.
5. **Reliable for Residential and Light Commercial Use** Suitable for homes, small businesses, and irrigation systems where backflow prevention is required.
6. **Low Maintenance** Requires periodic testing (as per local regulations) but has fewer moving parts compared to some other backflow preventers, reducing wear and tear.
7. **Prevents Water Waste** Helps avoid costly water loss due to siphoning or contamination-related system failures.
#### **Cons:**1. **Limited Flow Rate (800 GPM)** The **800 GPM (gallons per minute)** rating may be insufficient for large-scale commercial or industrial applications, requiring a higher-rated model.
2. **Requires Professional Testing** Must be tested annually (or as per local codes) by a certified backflow tester, adding to maintenance costs.
3. **Potential for Clogging** Like all backflow preventers, sediment or debris in the water supply could cause issues, requiring occasional cleaning.
4. **Higher Upfront Cost** Compared to basic check valves, this is a specialized device, making it more expensive initially.
5. **Space Requirements** Takes up more space than a simple valve, which may be a consideration in tight plumbing layouts.
6. **Pressure Drop** Introduces some resistance to water flow, which could slightly reduce water pressure in the system.
7. **Not Suitable for Extreme Conditions** May not perform optimally in systems with **very high pressure fluctuations** or **corrosive water**, requiring additional protection.
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### **Conclusion:**The **Watts T388002 800m4 Anti-Siphon Pressure Backflow Preventer** is a **reliable, high-quality choice** for **residential and light commercial applications** where backflow prevention is legally or safety-critical. Its **durability, compliance with standards, and effectiveness** make it a strong option for most users. However, its **limited flow capacity, maintenance requirements, and higher cost** may not justify its purchase for **large-scale or high-pressure systems**.
If your application involves **small to medium water usage (under 800 GPM), irrigation, or standard plumbing**, this device is **highly recommended**. For **industrial, high-flow, or extreme-pressure systems**, a **higher-rated model** may be necessary.
### **Recommendation:**- **Buy if:** You need a **certified, durable backflow preventer** for a **residential home, small business, or irrigation system** with moderate water flow.
- **Consider alternatives if:** You require **higher flow rates (above 800 GPM), extreme pressure handling, or a more compact solution**.
- **Ensure proper installation and annual testing** to maintain functionality and compliance.
For best results, consult a **licensed plumber or backflow tester** before purchase to confirm it meets your specific system requirements.
Details:
Easy internal access. The pressure vacuum breaker includes a freeze sensor for use with Sentry Plus Alert R technology to signal when ambient temperature approaches the threshold. Test cocks are conveniently positioned for easy testing and notarization. It is ideal in continuous pressure health hazard applications such as on irrigation systems and industrial process water.
It consists of bronze body construction, silicone rubber check valve disc, plastic seat, stainless steel springs, a bonnet with O-ring seal, light-weight disc float, tee handle or lever shutoffs and test cocks for Notarization draining. See 2nd picture. Freeze alerts feature available with add-on connection kit. Pressure vacuum breaker backflow preventer helps prevent the reverse flow of polluted water from entering into potable supply due to back siphon age.
Bronze body for durability. Missing little black piece, watts 800M4-QT Series 1 Bronze Anti-Siphon Pressure Backflow Preventer, Quarter Turn Shutoff, NPT Female Inlet x Outlet, Freeze Sensor, Lever Handles, Maximum 150 psi,: About This Product: The in. Female NPT inlet and outlet with quarter turn shutoffs. Highlights: Includes a freeze sensor for use with sentry plus alert technology to signal when temperature nears the point.
Acetyl bonnet acts as a freeze plug to prevent costly body damage. Connection kit available for building/irrigation management system BMS/IMS.
part #: t388002 prices
- $75.00-$124.95
specifications valvesplumbing:
- brand: Watts
- mpn: T388002
- part type: Pressure
- inlet connection type: Female Npt
- included components: Valve
- size: 1 Inch
- pipe size: 1 In
- material: Bronze, Stainless Steel, Silicone, Plastic
- maximum operating pressure: 1.5e 2 Pound Per Square Inch
- product dimensions: 9.5 X 8.5 X 4.5 Inches
- inlet connection size: 1 Inches
- batteries required : No
- valve type: Vacuum Breaker
- outlet connection type: Fnpt
- style: Standard
- exterior finish: Stainless Steel
- country of origin: China
- item weight: 5.68 Pounds
- upc: 313107040016
offer valvesplumbing:
- options: Ship-to-home
- quantity: 1
- started: March 11, 2026
- best offers: True
- availability: In Stock
- sold: 0
shipping valvesplumbing:
- carrier: USPS
- type: Fixed
- service: USPS Ground Advantage
- cost: $0.00
- transit: 3-8 Days
- class: Standard
general valvesplumbing:
- Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Backflow Preventers
- condition: Used
payments valvesplumbing:
- other
- credit card: Mastercard
- wallet: Apple-pay
seller valvesplumbing:
- # reviews: 2979
- rating: 99.0%
- city: Phoenix, Arizona
returns valvesplumbing:
- policy: Returns Accepted
- time: 30 Days
- paid by: Seller
- method: Money back
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