SKU: 54347044902

Watts 009-020 20mm ¾" RPZ Reduced Pressure Zone Backflow Preventer Device/Kits

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Description

Watts 009-020 20mm ¾" RPZ Reduced Pressure Zone Backflow Preventer Device/KitsOverview The listing is for Watts 009 020 20mm 3 4" RPZ Reduced Pressure Zone backflow preventer range in 3 configuration variants Device Only (009 020) Kits with Strainer & 2 Lockable Ball Valves (009 020 LBS) Kits with 2 Unions, Strainer & 2 Lockable Ball Valves (009 020 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 009-020 20mm 3/4" RPZ Reduced Pressure Zone backflow preventer range in 3 configuration variants

- Device Only (009-020)

- Kits with Strainer & 2 Lockable Ball Valves (009-020-LBS)

- Kits with 2 Unions, Strainer & 2 Lockable Ball Valves (009-020-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 3/4" 20mm

Thread Physical Measurements: 26.441mm 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 

 

Warranty

1 year replacement (parts only) warranty from purchase date is offered by All Plumbing Online. 

 

Return Policy

30 days worry free return is offered for peace of mind. All returned items must NOT be installed or with any water running through them. The original packaging must be supplied in resealable conditions. 

 

Contact Us

All Plumbing Online is a local business based in Brisbane, run by an experienced engineer who works as a consultant to the plumbing industry at manufacturers' level. I used to operate my own plumbing company and can answer any of your plumbing related questions, such as fitments, sizing or just chatting in general for advice.

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: 54347044902

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4.9 ★★★★★
Based on 15 reviews
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Verified Purchase
David S.
Cuba, US
★★★★★ 5
Look great!
Size: 40x7 2Pcs, Color: Black
Love the way these turned out in my office! I connected 3 shelves in a row across the wall to make one long shelf and it looks great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
C
Verified Purchase
Chris snyder
Waukegan, US
★★★★★ 3
Nice looking. Not very sturdy. Easy to install.
Size: 40x7 2Pcs, Color: White, Size: 40x7 2Pcs, Color: White
Update: The shelf slopes at about a 45° angle when you put anything more than about a pound on the outside edge of it. Perfectly fine up against the wall. Just seems like the braces inside aren't long enough to really give the stability needed. Bracket is nice and tight against the wall. Had to add braces underneath to hold a small plant, a photo and a small container. Wa sloping more and more each week The shelves look great and we're pretty easy to install. They have a single bracket that is very easy to mount to the wall and get nice and level.. The downside is that the bracket isn't long enough to go between studs. This seems like a pretty simple oversight. I mean why wouldn't you make it long enough to go stud to stud? Secondly and maybe more fatally the bars that go inside the shelf to support them coming out from the wall are significantly shorter than the depth of the shelf. Unfortunately this means the shelf is only supported the first few inches coming out from the wall so there is the potential for a slight lean forward.. The anchors they send are trash. Cheap soft plastic that just tears and bends with a screwdriver. I would suggest spending $2 and grabbing your own anchors from Ace or home Depot. The shelves are essentially made of a high grade cardboard kind of wood. They are not going to support much weight or last for years and years however there incredibly affordable and look nice and easy to install. Long as your expectations are right you'll be happy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 23, 2023
J
Verified Purchase
Janice Amidon
Alexandria, US
★★★★★ 5
Great product.
Size: 24x6 2Pcs, Color: Black
Very good sturdy item
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
S
Verified Purchase
SmartLady
Cuba, US
★★★★★ 5
Would buy again and again
Color: Black, Size: 35.4 Inches
These are beautiful! I thought they’d be hard to install, but very straightforward and easy. They are quality and sturdy. I staggered the shelves and they hold a lot. Great value for the quality. I will be buying more for another room in the house.
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Reviewed in the United States on March 10, 2026
R
Verified Purchase
Rochelle McGhee
Belleville, US
★★★★★ 5
Made my bathroom look beautiful
Color: White, Size: 15.7 Inches
The mounting and the color were excellent. I hung this in my bathroom and thought it was going to be a hard install for me. The hardware that came with this was very self explanatory. The fit was perfect and the quality was great. I would surely buy this item again in the future
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026

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