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![3 Inch Swing Check Valve - Threaded Brass 3 Inch Swing Check Valve - Threaded Brass](https://shop.sourcena.com/lowres/detail/246A-0400AV.jpg)
3 Inch Swing Check Valve - Threaded Brass
Item No. 246A-0400AV
Designed to prevent backflow in horizontal piping systems. Swing check valve allow liquid to flow in a single direction
![3/4 Inch Anti-Syphon Valve 0 To 5 Foot Head Pressure 3/4 Inch Anti-Syphon Valve 0 To 5 Foot Head Pressure](https://shop.sourcena.com/lowres/detail/199ASV-1075.jpg)
3/4 Inch Anti-Syphon Valve 0 To 5 Foot Head Pressure
Item No. 199ASV-1075
Factory-adjusted hydrostatic head pressure settings
![1 Inch Anti-Syphon Valve 0 To 5 Foot Head Pressure 1 Inch Anti-Syphon Valve 0 To 5 Foot Head Pressure](https://shop.sourcena.com/lowres/detail/199ASV-1100.jpg)
1 Inch Anti-Syphon Valve 0 To 5 Foot Head Pressure
Item No. 199ASV-1100
Factory-adjusted hydrostatic head pressure settings
![1 Inch Anti-Siphon Check Valve With Pressure Relief 1 Inch Anti-Siphon Check Valve With Pressure Relief](https://shop.sourcena.com/lowres/detail/403PR-10.jpg)
1 Inch Anti-Siphon Check Valve With Pressure Relief
Item No. 403PR-10
Reduces fire hazards and prevents fuel spillage should a line rupture
![2 Inch Anti-Siphon Check Valve With Pressure Relief 2 Inch Anti-Siphon Check Valve With Pressure Relief](https://shop.sourcena.com/lowres/nophoto.gif)
2 Inch Anti-Siphon Check Valve With Pressure Relief
Item No. 403PR-20
Reduces fire hazards and prevents fuel spillage should a line rupture
![1-1/2 Inch Anti-Syphon Valve 0 To 5 Foot Head Pressure 1-1/2 Inch Anti-Syphon Valve 0 To 5 Foot Head Pressure](https://shop.sourcena.com/lowres/detail/199ASV-1150.jpg)
1-1/2 Inch Anti-Syphon Valve 0 To 5 Foot Head Pressure
Item No. 199ASV-1150
Factory-adjusted hydrostatic head pressure settings
![3/4 Anti-Syphon Valve 5 To 10 Foot Head Pressure 3/4 Anti-Syphon Valve 5 To 10 Foot Head Pressure](https://shop.sourcena.com/lowres/detail/199ASV-2075.jpg)
3/4 Anti-Syphon Valve 5 To 10 Foot Head Pressure
Item No. 199ASV-2075
Factory-adjusted hydrostatic head pressure settings
![1 Inch Anti-Syphon Valve 5 To 10 Foot Head Pressure 1 Inch Anti-Syphon Valve 5 To 10 Foot Head Pressure](https://shop.sourcena.com/lowres/detail/199ASV-2100.jpg)
1 Inch Anti-Syphon Valve 5 To 10 Foot Head Pressure
Item No. 199ASV-2100
Factory-adjusted hydrostatic head pressure settings
![1 Inch 0-12 Foot Head Pressure Anti-Syphon Valve 1 Inch 0-12 Foot Head Pressure Anti-Syphon Valve](https://shop.sourcena.com/lowres/detail/60630001.jpg)
1 Inch 0-12 Foot Head Pressure Anti-Syphon Valve
Item No. 60630001
Hydrostatic pressure adjusting mechanism with durable weather cap
![2 Inch Anti-Syphon Valve 5-12 Foot Head Pressure Ecoated For Agb Compatibility 2 Inch Anti-Syphon Valve 5-12 Foot Head Pressure Ecoated For Agb Compatibility](https://shop.sourcena.com/lowres/detail/63630011.jpg)
2 Inch Anti-Syphon Valve 5-12 Foot Head Pressure Ecoated For Agb Compatibility
Item No. 63630011
Hydrostatic pressure adjusting mechanism with durable weather cap