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MEO Caleffi 573403A Backflow Preventer 1/2" NPT Female P11311892MEO-114967 https://cdnimages.opentip.com/full/MEO/MEO-114967.jpg Caleffi 573403A Backflow Preventer 1/2" NPT Female Manufacturer Part Number: 573403APart Description: Backflow Preventer Type Dual Check Continuous Pressure, Pressure Reducing Valve Nominal Size 1/2 Inch End Connection Female Threaded Union x Female Threaded Union End to End Distance 4-3/4 Inch Body Material Brass Disc/Poppet Material Stainless Steel Spring Material Stainless Steel Seat Material Polymer Seal Material EPDM Flow Rate 5-1/2 GPM Temperature Rating 32 to 250 Deg F Pressure Rating 175 PSI Inclusions/Features Stainless Steel Filter, EPDM Diaphragm and Seal, Brass Check Valve Application Plumbing and Hydronic Applicable Standard ASSE 1012, CSA B64.3, NSF 372, ICC-ES, IPC, IRC, UPC, ANAB, FM, ICIM, ISO 9001 Lead-FreeFeatures / Benefits Lead-Free 11311892 8016615087604 2.0400lbs 0.00 0.00 0.00
Caleffi
60.9000 2025-07-18 12 In Stock
customer review - by , February 2, 2023
5/ 5stars
Backflow installers this is your best buy and the same brand you'd get from any supplier.
customer review - by , February 2, 2023
5/ 5stars
I replaced a really crap backflow on my irrigation that didn't meet local code (PVB, has to be 18 above highest outlet and it was actually lower). I have to get it inspected annually and I was worried the guys would screw it up since everyone around me has the crappy PVB instead of RP, but the guy actually really liked that my test ports were quality and functional and asked for this listing to start buying them for new installs as an upsell.
customer review - by , July 7, 2022
4/ 5stars
Well made and meets Lead Free code requirements. Easy to install, if you are replacing the same unit and a union was installed.
customer review - by , April 4, 2022
5/ 5stars
Quality
customer review - by , April 4, 2022
5/ 5stars
Have use this type of backflow preventer for a number of years. Always tests out great. I use it for irrigation water from a fire hydrant. Left it in the garden shed one winter. That was a mistake. The residual water in the valve froze. Rebuilding it would cost more than buying a new one. Don't let it freeze and this valve should provide years of service.
customer review - by , February 2, 2022
5/ 5stars
Item was exactly what I needed
customer review - by , January 1, 2022
5/ 5stars
Works as expected
customer review - by , December 12, 2021
5/ 5stars
Looks great.. replacing a 20 year old unit. Will update if not a 5 star product
customer review - by , December 12, 2021
5/ 5stars
Excellent product rich worked as expected
customer review - by , July 7, 2021
5/ 5stars
Just as described. Great product

Caleffi 573403A Backflow Preventer 1/2" NPT Female, Price/each

stars Rating 5 | 19 reviews
Brand Caleffi
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UPC: 8016615087604
SKU: MEO-114967
Price: $60.90
Quantity:
12 In Stock
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Product Description

Price is for each.

Manufacturer Part Number: 573403A

Part Description:
  • Backflow Preventer
  • Type Dual Check Continuous Pressure, Pressure Reducing Valve
  • Nominal Size 1/2 Inch
  • End Connection Female Threaded Union x Female Threaded Union
  • End to End Distance 4-3/4 Inch
  • Body Material Brass
  • Disc/Poppet Material Stainless Steel
  • Spring Material Stainless Steel
  • Seat Material Polymer
  • Seal Material EPDM
  • Flow Rate 5-1/2 GPM
  • Temperature Rating 32 to 250 Deg F
  • Pressure Rating 175 PSI
  • Inclusions/Features Stainless Steel Filter, EPDM Diaphragm and Seal, Brass Check Valve
  • Application Plumbing and Hydronic
  • Applicable Standard ASSE 1012, CSA B64.3, NSF 372, ICC-ES, IPC, IRC, UPC, ANAB, FM, ICIM, ISO 9001
  • Lead-Free


Features / Benefits

  • Lead-Free

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

Note

This product is not eligible for coupon code discount, for we've been offering the best price in the market.
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Customer Reviews
5 stars
18
4 stars
1
3 stars
0
2 stars
0
1 stars
0
By Carolyn Parlet
Date: February 27, 2023
Backflow installers this is your best buy and the same brand you'd get from any supplier.
Rating: 5 stars [5 of 5 Stars!]
By IBrown
Date: February 23, 2023
I replaced a really crap backflow on my irrigation that didn't meet local code (PVB, has to be 18 above highest outlet and it was actually lower). I have to get it inspected annually and I was worried the guys would screw it up since everyone around me has the crappy PVB instead of RP, but the guy actually really liked that my test ports were quality and functional and asked for this listing to start buying them for new installs as an upsell.
Rating: 5 stars [5 of 5 Stars!]
By Broncomaniac
Date: July 08, 2022
Well made and meets Lead Free code requirements. Easy to install, if you are replacing the same unit and a union was installed.
Rating: 4 stars [4 of 5 Stars!]
By Steve Watkins
Date: April 24, 2022
Quality
Rating: 5 stars [5 of 5 Stars!]
By Donald F. Bladow
Date: April 24, 2022
Have use this type of backflow preventer for a number of years. Always tests out great. I use it for irrigation water from a fire hydrant. Left it in the garden shed one winter. That was a mistake. The residual water in the valve froze. Rebuilding it would cost more than buying a new one. Don't let it freeze and this valve should provide years of service.
Rating: 5 stars [5 of 5 Stars!]
By Patricia Watkins
Date: February 28, 2022
Item was exactly what I needed
Rating: 5 stars [5 of 5 Stars!]
Items 1 - 6 of 19 reviews
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