Flujos de regreso
Protect your potable water—and comply with code—by selecting the right back-flow prevention devices for your irrigation system. Our Back Flow Preventers & Parts collection offers trusted assemblies and accessories built for homeowners, DIYers, and pros alike.
Whether you’re installing a new lawn sprinkler system or upgrading an existing irrigation setup, a proper back-flow preventer is a critical safeguard. These devices stop the reversal of water flow—known as back-siphonage or back-pressure—which can draw fertilizers, soil bacteria, and other contaminants into your drinking water supply.
Shop by type
- PVB (Pressure Vacuum Breaker): common for lawn irrigation; must be installed above grade and typically 12" above highest downstream outlet.
- RPZ / RP (Reduced Pressure Zone): highest protection for high-hazard or fertilizer/chem injection; requires drain/relief discharge area.
- DC / DCVA (Double Check Valve Assembly): used where allowed for low-hazard irrigation without chemicals.
- AVB (Atmospheric Vacuum Breaker): zone-level protection; not for continuous pressure (typically one per zone where permitted).
What you'll find
- Sizes: 3/4", 1", 1-1/2", 2" (select larger commercial sizes available)
- Options & parts: union ball valves, test cocks, lead-free models, repair kits (bonnets, checks, relief assemblies), freeze covers
- Brands: Febco, Watts Water, Apollo, Zurn (Wilkins)
Why choose Big Frog Supply? We focus on irrigation, plumbing and landscape lighting supplies—so you’re not just buying a part, you’re tapping into expert-curated gear, reliable inventory, and a partner who speaks “sprinkler system” language.
-
Rompevacío de presión Apollo Bronze FIP
ApolloPrecio original $ 104.02 - Precio original $ 104.95Precio original$ 104.02 - $ 104.95$ 104.02 - $ 104.95Precio actual $ 104.02Este interruptor de vacío evita la contaminación del agua potable debido al retrosifón. Una válvula de alivio de protección contra congelamiento in...
Ver todos los detallesPrecio original $ 104.02 - Precio original $ 104.95Precio original$ 104.02 - $ 104.95$ 104.02 - $ 104.95Precio actual $ 104.02Agotado -
FEBCO 3/4 pulg. 765 Preventor de reflujo
FebcoPrecio original $ 116.62 - Precio original $ 116.62Precio original$ 116.62$ 116.62 - $ 116.62Precio actual $ 116.62Manual de instalación de la hoja de especificaciones Rompevacíos de presión Serie 765 Tamaño: 1/2" - 2" (15 mm - 50 mm) Los interruptore...
Ver todos los detallesPrecio original $ 116.62 - Precio original $ 116.62Precio original$ 116.62$ 116.62 - $ 116.62Precio actual $ 116.62Agotado -
Febco 765 Disyuntor de presión de 1" Watts con conexiones de unión
FebcoPrecio original $ 210.00Precio original $ 210.00 - Precio original $ 210.00Precio original $ 210.00Precio actual $ 199.99$ 199.99 - $ 199.99Precio actual $ 199.99Hoja de especificaciones Manual de instalación Los rompevacíos de presión Serie 765 están diseñados para instalarse para brindar protecci...
Ver todos los detallesPrecio original $ 210.00Precio original $ 210.00 - Precio original $ 210.00Precio original $ 210.00Precio actual $ 199.99$ 199.99 - $ 199.99Precio actual $ 199.99Agotado -
Febco 905211 Kit de reparación de capó para interruptores de vacío de presión 765 y preventores de reflujo, 1/2 pulgada y 3/4 pulgada
FebcoPrecio original $ 36.41 - Precio original $ 36.41Precio original$ 36.41$ 36.41 - $ 36.41Precio actual $ 36.41Este kit de reparación de capó Febco 905211 está diseñado para interruptores de vacío a presión y preventores de contraflujo 765, con tamaños de 1...
Ver todos los detallesPrecio original $ 36.41 - Precio original $ 36.41Precio original$ 36.41$ 36.41 - $ 36.41Precio actual $ 36.41 -
Febco - T765FBV 1 1/4 IN Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoffs, Freeze Sensor
FebcoPrecio original $ 653.33 - Precio original $ 653.33Precio original $ 653.33$ 653.33$ 653.33 - $ 653.33Precio actual $ 653.33This 1 1/4 inch pressure vacuum breaker backflow preventer is used to protect against health hazard and non-hazard backsiphonage of toxic or non-t...
Ver todos los detallesPrecio original $ 653.33 - Precio original $ 653.33Precio original $ 653.33$ 653.33$ 653.33 - $ 653.33Precio actual $ 653.33Agotado -
Febco 11/2" Pressure Vacuum Breaker 765-QT-FZ PVB 1 1/2 Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoffs, Freeze Sensor
FebcoPrecio original $ 733.23 - Precio original $ 733.23Precio original $ 733.23$ 733.23$ 733.23 - $ 733.23Precio actual $ 733.23This 1 1/2 inch pressure vacuum breaker backflow preventer is used to protect against health hazard and non-hazard backsiphonage of toxic or non-t...
Ver todos los detallesPrecio original $ 733.23 - Precio original $ 733.23Precio original $ 733.23$ 733.23$ 733.23 - $ 733.23Precio actual $ 733.23 -
Febco U765-QT-FZ PVB 1 1 IN Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoffs, Unions
FebcoPrecio original $ 217.32 - Precio original $ 217.32Precio original $ 217.32$ 217.32$ 217.32 - $ 217.32Precio actual $ 217.32Lead Free: NO 1 IN Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoffs, Union Connections, Freeze Sensor This 1 inch pressu...
Ver todos los detallesPrecio original $ 217.32 - Precio original $ 217.32Precio original $ 217.32$ 217.32$ 217.32 - $ 217.32Precio actual $ 217.32 -
Zurn Wilkins 34-720A 3/4 Inch Pressure Vacuum Breaker Assembly
Zurn WilkinsPrecio original $ 0.00 - Precio original $ 0.00Precio original $ 0.00$ 147.99$ 147.99 - $ 147.99Precio actual $ 147.99Our Pressure Vacuum Breaker protects against back siphonage in high health hazard, non-potable residential and commercial irrigation applications. ...
Ver todos los detallesPrecio original $ 0.00 - Precio original $ 0.00Precio original $ 0.00$ 147.99$ 147.99 - $ 147.99Precio actual $ 147.99 -
Zurn Wilkins 12-720A 1/2" 720A Pressure Vacuum Breaker Assembly
Zurn WilkinsPrecio original $ 159.99 - Precio original $ 159.99Precio original$ 159.99$ 159.99 - $ 159.99Precio actual $ 159.99Our Pressure Vacuum Breaker protects against back siphonage in high health hazard, non-potable residential and commercial irrigation applications. ...
Ver todos los detallesPrecio original $ 159.99 - Precio original $ 159.99Precio original$ 159.99$ 159.99 - $ 159.99Precio actual $ 159.99Agotado -
Zurn Wilkins 112-720A 1-1/2" 720A Pressure Vacuum Breaker Assembly
Zurn WilkinsPrecio original $ 795.99 - Precio original $ 795.99Precio original$ 795.99$ 795.99 - $ 795.99Precio actual $ 795.99Our Pressure Vacuum Breaker protects against back siphonage in high health hazard, non-potable residential and commercial irrigation applications. ...
Ver todos los detallesPrecio original $ 795.99 - Precio original $ 795.99Precio original$ 795.99$ 795.99 - $ 795.99Precio actual $ 795.99Agotado -
Zurn Wilkins RK1-720A 1/2" - 2" Pressure Vacuum Breaker Repair Kit
Zurn WilkinsPrecio original $ 74.99 - Precio original $ 74.99Precio original$ 74.99$ 74.99 - $ 74.99Precio actual $ 74.99Complete repair kit for the 720A Pressure Vacuum Breaker. Kits fits the 1/2" - 2" models of the Wilkins 720A Includes poppet assembly, spider asse...
Ver todos los detallesPrecio original $ 74.99 - Precio original $ 74.99Precio original$ 74.99$ 74.99 - $ 74.99Precio actual $ 74.99Agotado -
Zurn Wilkins 114-720A 720A 1.25 inch PVB Backflow Preventer
Zurn WilkinsPrecio original $ 651.99 - Precio original $ 651.99Precio original$ 651.99$ 651.99 - $ 651.99Precio actual $ 651.99Designed for installation on potable water lines to protect against backsiphonage of contaminated water into the potable water supply. Assembly sh...
Ver todos los detallesPrecio original $ 651.99 - Precio original $ 651.99Precio original$ 651.99$ 651.99 - $ 651.99Precio actual $ 651.99Agotado -
Watts Disyuntor de presión antisifón de bronce de 1 pulg., cierre de cuarto de vuelta, manijas en T
Watts Water TechnologiesPrecio original $ 360.10 - Precio original $ 360.10Precio original$ 360.10$ 360.10 - $ 360.10Precio actual $ 360.10Descripción del Producto Tamaño: 1" Este interruptor de vacío de presión antisifón de 1 pulgada evita que el flujo inverso de agua contam...
Ver todos los detallesPrecio original $ 360.10 - Precio original $ 360.10Precio original$ 360.10$ 360.10 - $ 360.10Precio actual $ 360.10 -
Febco Poppet Assembly Kit for 1/2", 3/4" 765 Pressure Vacuum Breaker
FebcoPrecio original $ 26.08 - Precio original $ 26.08Precio original $ 26.08$ 26.08$ 26.08 - $ 26.08Precio actual $ 26.08Febco: 1/2" - 3/4" - Poppet Assembly for a 765 Pressure Vacuum Breaker
Precio original $ 26.08 - Precio original $ 26.08Precio original $ 26.08$ 26.08$ 26.08 - $ 26.08Precio actual $ 26.08 -
Kit de montaje de capó y asiento Febco 905212 para válvulas Febco 765 de 1 pulgada y 1-1/4 pulgadas
FebcoPrecio original $ 61.71 - Precio original $ 61.71Precio original$ 61.71$ 61.71 - $ 61.71Precio actual $ 61.71El kit de montaje de capó y asiento Febco 905212 está diseñado para válvulas Febco 765 de 1 y 1-1/4 pulgadas. Proporciona protección duradera para ...
Ver todos los detallesPrecio original $ 61.71 - Precio original $ 61.71Precio original$ 61.71$ 61.71 - $ 61.71Precio actual $ 61.71Agotado -
Febco - T765HBV 2" Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoffs, Freeze Sensor
FebcoPrecio original $ 786.00 - Precio original $ 786.00Precio original $ 786.00$ 786.00$ 786.00 - $ 786.00Precio actual $ 786.00This 2 inch pressure vacuum breaker backflow preventer is used to protect against health hazard and non-hazard backsiphonage of toxic or non-toxic...
Ver todos los detallesPrecio original $ 786.00 - Precio original $ 786.00Precio original $ 786.00$ 786.00$ 786.00 - $ 786.00Precio actual $ 786.00Agotado -
Febco 1" Pressure Vacuum Breaker 1" 765-QT-FZ T765EBV PVB Bronze Pressure Vacuum Breaker Backflow Preventer,
FebcoPrecio original $ 136.24 - Precio original $ 136.24Precio original $ 136.24$ 201.47$ 201.47 - $ 201.47Precio actual $ 201.47This 1 inch pressure vacuum breaker backflow preventer is used to protect against health hazard and non-hazard backsiphonage of toxic or non-toxic...
Ver todos los detallesPrecio original $ 136.24 - Precio original $ 136.24Precio original $ 136.24$ 201.47$ 201.47 - $ 201.47Precio actual $ 201.47 -
Febco 3/4" Pressure Vacuum Breaker 3/4” 765-QT-FZ PVB 3/4 IN Bronze Pressure Vacuum Breaker Backflow
FebcoPrecio original $ 189.19 - Precio original $ 189.19Precio original $ 189.19$ 189.19$ 189.19 - $ 189.19Precio actual $ 189.19This 3/4 inch pressure vacuum breaker backflow preventer is used to protect against health hazard and non-hazard backsiphonage of toxic or non-tox...
Ver todos los detallesPrecio original $ 189.19 - Precio original $ 189.19Precio original $ 189.19$ 189.19$ 189.19 - $ 189.19Precio actual $ 189.19
Related Articles
Freeze Protecting Your Pressure Vacuum Breaker
Backflow prevention assemblies must be drained for the winter in areas where freezing temperatures may occur. If water inside the...
Secrets Every Sprinkler System Owner Must Know About Pressure Vacuum Breakers
This article will provide a detailed understanding of PVBs, their significance, and why you need one for your irrigation system.
The difference between a Pressure Vacuum Breaker and a Reduced Pressure Zone
When it comes to protecting a plumbing system from backflow, there are different types of devices that can be installed....