3 4 backflow preventer best sellers

#1 2 Pack Brass 3/4" Inch Litorange 2 Pack Brass 3/4" Inch GHT Hose Bibb Connector Backflow Preventer Vacuum Breaker

$9.99 on Amazon

#2 12inch Anti Siphon Frost Boltigen 12inch Anti-Siphon Frost Free Sillcock, No Lead Brass Frost Proof Outdoor Faucet Bib with Backflow Preventer, 1/2" Push-to-Fit Connector X 3/4 Inch Hose Bibb Frost Free Spigot

$36.99 on Amazon

#3 2 Pack Hose Bib Backflow SUNGATOR 2-Pack Hose Bib Backflow Preventer, 3/4 Inch GHT Vacuum Breakers Outside Faucet, Hose Bib Anti-Siphon Valve for Outdoor Faucet, Brass 3/4'' Garden Hose Bib Anti-Backflow Preventer

$9.99 on Amazon

#4 765 Series 3/4" Bronze Febco 765 Series 3/4" Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoff, NPT Connections, Freeze Sensor with SentryPlus Alert Technology, Industrial Plants, Irrigation System

$136.50 on Amazon

#5 VACBFPZ4B Vacuum Breaker Homewerks Worldwide VACBFPZ4B Vacuum Breaker Hose Bib Backflow Preventer, 3/4 Inch, Brass

$7.46 on Amazon

#6 🔥 3/4" Brass Foot Valve PNXKTXO 3/4" Brass Foot Valve, DN20 Check Valve Water Pump Bottom Valves with Filter One Way No Return Valves Foot Valve Strainer Backflow Preventer

$9.99 on Amazon

#7 Stainless Steel 3/4 NPT BOLTIGEN Stainless Steel 3/4 NPT Thread Non Return One Way Horizontal/Vertical Inline Water Check Valve for Well, Pump, Tank, Backflow Prevention

$13.99 on Amazon

#8 2PCS 3/4 NPT Thread Brass BOLTIGEN 2PCS 3/4 NPT Thread Brass Non Return One Way Horizontal Check Valve for Well, Pump, Tank, Backflow Prevention

$16.99 on Amazon

#9 3/4" 1" Complete Repair 3/4"-1" Complete Repair Kit For Wilkins Backflow Preventer Zurn 975XL / 975XL2

$50.49 on Ebay

#10 2 PCS 3/4" Anti Siphon 2 PCS 3/4" Anti Siphon Vacuum Breakers Backflow Preventer With Tape, 4 Washers

$11.99 on Ebay

#11 Zurn Wilkins 34 975XL2 Zurn Wilkins 34-975XL2 3/4" Reduced Pressure Zone Backflow Preventer Lead-Free

$489 on Ebay

#12 PVC True Union Check BOLTIGEN PVC True Union Check Valve, 3/4’’ Slip Swing Full Port Utility Check Valve, Sch80 Socket Pool Ball Check Valve for Backflow Prevention

$15.99 on Amazon

#13 LF007 Series 3/4" Lead Free Watts LF007 Series 3/4" Lead-Free Copper Silicon Alloy Double Check Valve Backflow Preventer Assembly, Quarter Turn Shutoff, Single Top Entry, NPT Connections, Freeze Sensor, Modular Design

$219.85 on Amazon

#14 2 Pack Faucet Vacuum Xiny Tool 2 Pack Faucet Vacuum Breaker, 3/4 Inch Solid Brass Hose Bib Backflow Preventer for Garden Spigot RV

$7.99 on Amazon

#15 3/4" NPT Horizontal Check SYWUWV 3/4" NPT Horizontal Check Valve, Brass Non Return Swing Check Valve to Prevent Water Backflow, Level One Way Counterflow Valve to Prevent the Medium Backflow for Oil Water Gas Air（3/4", DN20）

$10.99 on Amazon

#16 2025 Upgrade 905 211 supeiqality 2025 Upgrade 905-211 Bonnet and Poppet Repair Kit for Febco 765 1/2&3/4 Backflow Preventer and Vacuum Breaker Repair Kit 3-Year Warranty

$18.54 on Amazon

#17 🔥 Brass Check Valve 3/4" Joywayus Brass Check Valve 3/4" NPT Female Thread One Way Backflow Preventer Check Valves (Pack of 2)

$15.99 on Amazon

#18 Wilkins 34 350 3/4" 350 Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer

$224.14 on Amazon

#19 Backflow Preventer 3/4 Watts Backflow Preventer 3/4 In Water Pressure Reducing Valve, Npt Thread Union X Npt Female, Max Work 400 psi, Adjust 25-75 psi

$170.93 on Amazon

#20 PVC Inline Check Valve Midline Valve PVC Inline Check Valve for Backflow Prevention 3/4'' FIP White Plastic (4I2U34)

$8.99 on Amazon