SKU: 54633377313

Watts 009-025 25mm 1" RPZ Reduced Pressure Zone Backflow Preventer Device/Kits

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Description

Watts 009-025 25mm 1" RPZ Reduced Pressure Zone Backflow Preventer Device/KitsOverview The listing is for Watts 009 025 25mm 3 4" RPZ Reduced Pressure Zone backflow preventer range in 3 configuration variants Device Only (009 025) Kits with Strainer & 2 Lockable Ball Valves (009 025 LBS) Kits with 2 Unions, Strainer & 2 Lockable Ball Valves (009 025 ULBS) The Watts RPZ reduced pressure zone backflow preventer takes the backflow prevention protection one step further than a conventional DCV double check valve. Compared to a

Overview

The listing is for Watts 009-025 25mm 3/4" RPZ Reduced Pressure Zone backflow preventer range in 3 configuration variants

- Device Only (009-025)

- Kits with Strainer & 2 Lockable Ball Valves (009-025-LBS)

- Kits with 2 Unions, Strainer & 2 Lockable Ball Valves (009-025-ULBS)

The Watts RPZ reduced pressure zone backflow preventer takes the backflow prevention protection one step further than a conventional DCV double check valve. Compared to a Watts DCV, the WATTS RPZ features an additional differential release valve in the center of the valve body. In case of a check valve mechanical failure or debris caught inside, the differential release valve will open to cut off the contaminated water source to the portable water mains supply.  This Watts RPZ backflow preventer employs two in-line, independent check valves, captured springs and replaceable check seats with an intermediate relief valve. The Watts RPZ is compatible with other popular brands such as Fabco, Tyco, Wilkins and Conbraco Apollo. 

This makes the Watts RPZ the only suitable device when there are potentially dangerous cross-connections such as swimming pools or sewage processing plants, where a DCV is deemed as insufficient protections by water authorities in accordance to national plumbing codes.

A Watts RPZ is usually significantly more expensive than the equivalent DCV counterparts, even though they may look very similar. Customers need to check with the local plumbing authority to ensure the correct backflow preventers are used for the jobs. 

All Plumbing Online stocks and supplies both Watts DCV and RPZ in full range of sizes and kits configurations. Just ask me any further questions if still unsure between Watts DCVs and RPZs. All Watts DCV and RPZ are Watermark approved and are one of the most popular kits in Australian market due to its reputations and values for money.

 

Technical Details

Manufacturer: Watts
Specifications:

Maximum Working Pressure: 1400 kPa
Temperature Range: 0.5°C to 90°C

Thread Size: BSP 1" 25mm

Thread Physical Measurements: 33.249mm external male/internal female thread (refer to the BSP vs Physical measurement table chart in the photo gallery)

Material: DR Brass
Features:

  • Internal relief valve for reduced installation clearances
  • Top entry single access cover and modular construction for ease of maintenance 
  • Replaceable seats and seat discs
  • Modular construction
  • Compact design
  • Cast bronze body construction
  • Top mounted ball valve test cocks 
  • Low pressure drop
  • No Special tools required for servicing 

Intended Use: Prevent backflow to protect drinking water supplies from contamination 


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54633377313

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4.5 ★★★★★
Based on 28 reviews
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S
Verified Purchase
stiff Ola
Lexington, US
★★★★★ 5
Good deal
Size: CA12377&CF12157
Easy to install and much cheaper than the dealership cost. Quality was good, also had installation instructions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
R
Verified Purchase
Ramr Imari
Lowell, US
★★★★★ 5
Excellent Air filter - Easy installation.
Style: BE-743 1-Pack
Excellent AC and Heater Cabinet odor defense air filter. I noticed immediately the smell coming out of the vents was fresher and the musty smell that was coming from the vents was crisper and cleaner. Very easy installation that you can do yourself and don’t need to pay a shop to do. The price is one of the best online and coms in quickly. It’s very sturdy, filter quality is excellent and it definitely improves the air quality and flow in your car. Fits perfectly like any OEM filter, this is a great buy for the price of an installation that will take you Les then 10 minutes to do yourself.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
K
Verified Purchase
Khaleesi
Houston, US
★★★★★ 5
Great filter and easy installation
Style: BE-159 1-Pack, Style: BE-159 1-Pack
For my 2016 Hyundai Sonata Hybrid Limited. I cannot believe I paid so much more for a brand-name filter that does the same thing as this one. It is made of the same material as the dealer one I took out. Very easy to install, cant believe I paid for this to be done in the past with oil changes. Requires no tools and did not get dirty at all. No mechanical skills needed, especially if you run into trouble and can use YouTube. PROS - great quality, cannot tell that it is after-market - very professionally made, not irregularities seen - excellent fit in position, no adjustment needed - very easy to install, cannot believe I paid to have this done in the past - no mechanical skills needed to install - great price compared to what big name productions want for the same thing - cannot tell the difference in air quality between this and the dealer filter I took out - removes outside odor completely - did not require tools are getting dirty CONS - None
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
J
Verified Purchase
JimXeod
Dallas, US
★★★★★ 5
Fits perfect and works as designed. Flows like OEM and looks well made.
Style: BE-553B 1-Pack
This filter is very comparable to the stock filter. Fits the BMW G20 just like OEM. I would not say it is two times "heavier" as advertised on the box, but it is very comparable to stock. It's the same weight and similar construction. BMW has a very robust cabin filter. This will be my go to. I did purchase another aftermarket cabin filter that fit well, but was thin, flimsy and had a bad chemical odor. This one is fine and airflow is the same as OEM. I change them every year or so. I don't worry too much about longevity with cabin filters personally.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
S
Verified Purchase
S. Phillips
Birmingham, US
★★★★★ 4
Good quality but it was slightly longer than original and needed modification.
Style: BE-182 1-Pack
Bought this cabin filter for a 2023 Acura TLX. While the filter seems to be made of quality material, it was just a little too long (about a 1/16 of an inch, so I had to trim it to make it fit so the cover would fit snug. I was able to do that without compromising the filter itself. But this might be an issue for some people
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026

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