WATTS T388015 Freeze Pressure Vacuum Breaker 098268544954 800M4FR Z4B6

( Brand: Watts ), ( Manufacturer Part Number: T388015 ), ( Part Type: Pressure Vacuum Breaker ), ( Model Name: Vacuum Breaker ), ( Package Dimensions Lxwxh: 9.84x8.82x5.08 Inches ), ( Unit Count: 1.0 ), ( Inlet Connection Type: 1-inch Npt ), ( Included Components: Valve ), ( Size: 1 Inch ), ( Material: Plastic, Stainless Steel, Silicone, Bronze ), ( Weight: 5.64 Pounds ), ( UPC: 098268544954 ), ( Style: Freeze Resistant ), ( Exterior Finish: Stainless Steel )

Review WATTS Inch Freeze resistant Pressure Vacuum Breaker Used

The **Watts T388015 800M4FR Freeze-Resistant Pressure Vacuum Breaker (Z4B6)** is a high-performance, backflow prevention assembly designed to safeguard potable water systems from contamination while ensuring reliable operation in freezing conditions. Engineered with Watts trusted **Z4B6** series technology, this device combines a **pressure vacuum breaker (PVB)** and a **freeze-resistant mechanism** into a single, compact unit, making it an ideal solution for outdoor faucets, sprinkler systems, hose bibs, and other exposed water outlets where temperature fluctuations and potential freeze-thaw cycles pose a risk. The **800M4FR** model features a **double-check valve assembly** that prevents backflow and siphonage, ensuring clean water remains uncontaminated while simultaneously protecting the system from damage caused by freezing temperatures. Constructed from durable **brass** with a **black powder-coated finish**, this assembly is built to withstand harsh environmental conditions, including extreme cold, while maintaining corrosion resistance and longevity. Its **freeze-resistant design** incorporates a specialized internal mechanism that allows water to drain completely when not in use, reducing the risk of pipe bursts and system failures during winter months. The **T388015** model is particularly well-suited for residential and light commercial applications where space is limited, as it integrates seamlessly into existing plumbing setups without requiring extensive modifications. With its **NSF/ANSI Standard 61 and 372 certified** components, this pressure vacuum breaker provides peace of mind by meeting strict health and safety regulations for potable water systems. Whether installed on a garden hose bib, outdoor shower, or irrigation system, the **Watts T388015 800M4FR** delivers dependable performance, ensuring both water quality and system integrity in even the most demanding conditions.

### **Pros and Cons of buying a Watts T388015 800m4FR Freeze-Resistant Pressure Vacuum Breaker (Z4B6)**

1. **Freeze-Resistant Design** The "FR" designation indicates it is built to withstand freezing temperatures, preventing damage from ice formation in cold climates. This is particularly useful in regions with harsh winters or seasonal temperature fluctuations.

2. **Pressure Vacuum Breaker (PVB) Functionality** This device combines a pressure vacuum breaker and a vacuum breaker, ensuring proper backflow prevention while also preventing siphonage and contamination of the water supply. It helps maintain safe drinking water quality by preventing reverse flow from plumbing fixtures.

3. **Durable Construction** Watts is a well-known brand in plumbing fixtures, and this model is likely made from materials designed for longevity, such as brass or other corrosion-resistant alloys. The freeze-resistant feature suggests reinforced components to handle extreme conditions.

4. **Compliance with Codes** The Z4B6 model is likely certified for use in residential and commercial plumbing systems, adhering to standards like the **Uniform Plumbing Code (UPC)** or **International Plumbing Code (IPC)**. This ensures it meets local backflow prevention requirements.

5. **Easy Installation** PVBs like this one are typically designed for straightforward installation on outdoor spigots, hoses, or irrigation systems. The threaded connections (likely " or " NPT) make it compatible with standard plumbing fittings.

6. **Prevents Contamination** By breaking vacuum and preventing backflow, it protects the water supply from pollutants, chemicals, or bacteria that could enter through hoses or fixtures.

7. **Cost-Effective for Long-Term Use** While the upfront cost may be higher than a basic spigot, its durability and functionality can save money in the long run by avoiding costly repairs or replacements due to freeze damage or contamination issues.

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1. **Higher Initial Cost** Compared to standard outdoor spigots or basic vacuum breakers, this specialized model is more expensive. The freeze-resistant feature and dual functionality (pressure and vacuum breaker) contribute to the higher price point.

2. **Limited Use Cases** If you live in a region with mild winters or do not have significant backflow concerns (e.g., no irrigation systems or hose bibs prone to siphonage), this may be an overkill investment. A simpler vacuum breaker or standard spigot might suffice.

3. **Maintenance Requirements** Like all backflow prevention devices, the T388015 requires periodic inspection and testing to ensure it functions correctly. If neglected, it could fail, leading to contamination risks. Some users may forget to test it annually, especially in areas with infrequent freezing.

4. **Potential for Clogging** Over time, sediment or debris can accumulate in the internal mechanisms, affecting performance. Regular cleaning may be necessary to keep it operating smoothly.

5. **Installation Complexity** While generally straightforward, improper installation (e.g., incorrect threading, improper sealing) can lead to leaks or failure. If the user lacks plumbing experience, hiring a professional may add to the cost.

6. **Replacement Parts Availability** As with many specialized fixtures, finding replacement parts or the exact model in the future may be challenging if Watts discontinues it. Always check for availability before purchasing.

7. **Aesthetic Limitations** The functional design of a freeze-resistant PVB may not blend seamlessly with all outdoor decor. It is primarily a utility fixture, not an ornamental one.

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The **Watts T388015 800m4FR Freeze-Resistant Pressure Vacuum Breaker (Z4B6)** is a high-quality, reliable solution for preventing backflow and freeze damage in outdoor plumbing systems. Its dual functionality, durability, and compliance with plumbing codes make it ideal for homeowners in cold climates or those with irrigation systems, hoses, or fixtures prone to contamination risks. However, its higher cost and specialized use case may not justify the purchase for everyone, particularly in mild climates or where simpler backflow prevention is sufficient.

If you **live in a freezing climate, have an irrigation system, or use outdoor hoses frequently**, this model is a strong recommendation due to its robustness and safety features. If you **live in a warm area with minimal backflow risks**, a standard vacuum breaker or basic spigot may be a more economical choice.

- **Buy it if:** You need freeze protection, have a high-risk backflow scenario (e.g., agricultural use, chemical storage), or live in a region with frequent temperature drops below freezing.

- **Skip it if:** Your area has mild winters, you have a simple outdoor spigot with no irrigation or hose connections, or you prefer a lower-cost alternative that meets basic backflow prevention needs.

- **Consider alternatives:** If budget is a concern, look for a **basic freeze-resistant vacuum breaker** (without pressure breaker functionality) or a **less expensive Watts model** (e.g., T388014) if pressure breaker capability isn t critical.

Always verify local plumbing codes to ensure compliance, and prioritize installation by a licensed plumber if unsure about proper setup.

Details:

watts 1 Lead Free Anti-Siphon Pressure Vacuum Breaker with Quarter Turn Shutoff and Tee Handles. 1 800M4FR watts Freeze-Resistant Pressure Vacuum Breaker Used Z4B6. 30 DAY MONEY BACKGUARANTEE IF YOU ARE UNHAPPY WITH THIS PRODUCT. We combine shipping on multiple orders.

You're buying for a 1 800M4FR watts Freeze-Resistant Pressure Vacuum Breaker Used. Theres no charge for picking up at our Northwest Detroit Suburb location.

part #: t388015 prices

• $120.00-$406.99

specifications valvesplumbing:

• brand: Watts
• mpn: T388015
• part type: Pressure Vacuum Breaker
• model name: Vacuum Breaker
• package dimensions lxwxh: 9.84x8.82x5.08 Inches
• unit count: 1.0
• inlet connection type: 1-inch Npt
• included components: Valve
• size: 1 Inch
• material: Plastic, Stainless Steel, Silicone, Bronze
• weight: 5.64 Pounds
• upc: 098268544954
• style: Freeze Resistant
• exterior finish: Stainless Steel

offer valvesplumbing:

• started: April 13, 2026
• availability: In Stock
• options: Ship-to-home
• best offers: True
• sold: 0
• quantity: 1

general valvesplumbing:

• Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Other Valves Manifolds
• condition: Used

returns valvesplumbing:

• time: 60 Days
• paid by: Seller
• policy: Returns Accepted
• method: Money back

seller valvesplumbing:

• city: Oak Park, Michigan
• # reviews: 14868
• rating: 100.0%

shipping valvesplumbing:

• cost: $17.05
• type: Calculated
• service: USPS Ground Advantage, UPS Ground
• class: Standard
• carrier: USPS, UPS
• transit: 3-7 Days

payments valvesplumbing:

• credit card: Visa
• other
• wallet: Paypal

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