SKU: 79156809028

AW Logi DOV20MLF Watermark Dual/Double Check Valve 20mm 3/4" Male to Female

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Description

AW Logi DOV20MLF Watermark Dual/Double Check Valve 20mm 3/4" Male to FemaleOverview Austworld (AW) DOV20MLF 20mm (3 4") MI Male to FI Female Thread DR Brass Dual Check Valve. Tested and certified in accordance with AS NZS 2845. 1 and Australian Watermark approved. Dual Check Valves are used for protection against cross contamination of non potable water in low hazardous conditions such as rain water tank systems and domestic meter connections. Not to be used in hot water installations. Visit our store for more fittings and

Overview

Austworld (AW) DOV20MLF 20mm (3/4") MI Male to FI Female Thread DR Brass Dual Check Valve. Tested and certified in accordance with AS/NZS 2845.1 and Australian Watermark approved. Dual Check Valves are used for protection against cross contamination of non-potable water in low hazardous conditions such as rain water tank systems and domestic meter connections. Not to be used in hot water installations.

Visit our store for more fittings and plumbing products.

Technical Details

  • Manufacturer: Austworld (AW)
  • Model: DOV20MLF
  • Specifications:
    • Maximum Working Temperature: 1°C to 60°C
    • Minimum Pressure Rating: 60 kPa
    • Maximum Pressure Rating: 1200 kPa
  • Thread: 3/4" BSP (20mm Male MI Thread; 3/4" BSP (20mm) Female FI Thread [20MI x 20FI]
  • Material: DR Brass
  • Features:
    • Watermark Approved
    • Double Check Valve for improved flow
    • Compact Design
    • Protects against backflow and back siphonage
    • Suitable for vertical or horizontal installation
    • 100% factory tested
  • Intended Use: Protects against cross contamination of non-potable water in potable water applications for low hazard situations. 
  • SKU: DOV20MLF

Package Contents

  • Austworld DOV20MLF 20mm (3/4") Dual Check Valve Male to Female (20MI x 20FI) Thread
  • Package Weight 350g

Thread dimensions/size note

Australian BSP thread size names can be confusing. The mm and inch naming system are only nominal conventions, they are not the physical measurements of the thread size. E.g. a common 15mm (1/2") fitting will have an actual external male thread diameter or an internal female thread diameter measurement of 20.995mm (0.825"); 20mm (3/4") fitting likewise will measure 26.441mm (1.041") 

Please refer to our BSP sizing chart provided in the last image in our gallery. Feel free to asks us any questions.

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: 79156809028

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4.5 ★★★★★
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W
Verified Purchase
William Lovelace
Grantham, US
★★★★★ 5
Great dog toys
Color: S6-muti-color
These are long lasting, durable dog toys. My dogs love the squeak sound.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
K
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Karen
Phoenix, US
★★★★★ 5
Durable
Color: S6-muti-color
The balls are great for chewers. The squeaky didn’t last long but they are perfect for the ball launcher.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
C
Verified Purchase
Candice K
Waukegan, US
★★★★★ 4
The squeeker isn't durable, but the balls themselves are.
Color: S6-muti-color, Color: S6-muti-color
I have two 70+lb, ball obsessed dogs (a field bred Golden Retriever, and an Old Time Scotch Collie), and these balls are living up to the abuse they're receiving. In the fall we always lose a ball or two in the yard due to getting lost in leaves or longer grass, so I always try and buy a multi pack at the start of the season, so went with these this year. I'm glad I did. Great price for a 6 pack, they fit the medium Chuck-It launcher (a little loosely, but they throw just fine), have great bounce, they FLOAT (which means I didn't lose any at the beach), and they're super durable to the dreaded "mouth squish." The squeaker dies pretty quick, like, within a day, but it isn't the kind that can fall out or choke your dog, so no worries there. The boys are happy, I'm happy, my wallet is happy - I've already ordered another pack.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 2, 2024
S
Verified Purchase
S. Berg
Port Orchard, US
★★★★★ 5
Good balls
Color: S6-glow
My dog is a chewer, and these have held up for close to a year actually a pretty good product
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Reviewed in the United States on May 27, 2026
N
Verified Purchase
nanny america
Alexandria, US
★★★★★ 3
Disappointed
Color: S6-muti-color
These were great for about 20 minutes then they stopped squeaking...we have 2 left that I have saved but the other 4 do not squeak anymore...disappointed as my dog loves to squeak things...would not buy these again...My dog is only an 8lb dog too...but he can still play with the balls without the squeak...
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Reviewed in the United States on April 26, 2026

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