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Internet #313535904

Model #BF5M1401SB

Store SKU #1005457232

1 1/4 in. x 1 in. BF-1 Series Dual Check Backflow Preventer with SharkBite Connections

  • Prevents the reverse flow of water into supply lines
  • Straight through design minimizes pressure drop
  • Push-to-connect fittings require no solder,glue, unions, or tools
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Product Overview

The Cash Acme dual check valve with integrated SharkBite connections prevents polluted water from entering the potable water supply system by preventing the reverse flow of water into supply lines. and The Cash Acme Back Flow Preventer is constructed of a cast bronze body and brass union inlet connection. The check assemblies are constructed with Stainless Steel spring and EPDM rubber seat discs and O-rings.
  • Prevents polluted water from entering the potable water supply system
  • Straight through design, minimizes pressure drop
  • May be installed horizontally or vertically
  • Listed by ASSE and CSA
  • Innovative push-to-connect design makes for quick and easy installation
  • Use to connect to any combination of copper, PEX, Cpvc or PE-RT pipes
  • California residents

Info & Guides

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Inlet Diameter (In.)
Outlet Diameter (In.)
Product Depth (in.)
5 in
Product Height (in.)
3 in
Product Length (in.)
5 ft
Product Width (in.)
2.5 in


Potable Water
Compatible Pipe Material
FIP x Push-To-Connect
Direct Connect,Lead Free,Removable
Maximum Pressure (psi)
Maximum Working Temperature (F)
Pack Size
Product Weight (lb.)
1.52 lb
Valve Type
Backflow Prevention

Warranty / Certifications

Manufacturer Warranty
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Customer Reviews

  • 4.5
    out of 2 reviews
  • 100% recommend this product
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Showing 1-2 of 2 reviews
Sharkbite Rules
Like all other sharkbite plumbing parts, this one passes with flying colors. Only problem with sharkbite is they are expensive. This part is heavy duty, well made, & should last a lifetime. Installation is easy. Pex tubing & copper tubing fit right in one side & its snug & secure. No leaks. The other side is threaded for threaded pipe. This adapter makes it easy to convert.
  • Recommended
Very Nice Valve
This backflow preventer seems to be well made and it works very well. It is brass on the outside and has valves with rubber seals on the inside. It has two separate spring loaded valves on the inside with rubber seals between them. It held 35 psi back pressure with no leakage when I tested it. I don't know if you can buy the valves separate, but if you can, you could replace just the valves, as the whole thing will come apart. I am not super fond of plastic valves, but they seem to work. The inlet is what they call 1 1/4" Meter Swivel Nut, it has female threads that measure 1.53" with a rubber gasket. The outlet is a 1" Female Shark Bite Fitting. They do include a Shark Bite release tool so you can take the Shark Bite fitting apart if needed. I like the Shark Bite fittings as just push together to connect. The opening in the plastic check valve is about .75". The valve is about 6 3/4" long and about 2 1/8" in diameter at the nut. All in all a nicely built backflow valve
  • Recommended
Showing 1-2 of 2 reviews