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![4 Inch Probe Cap With 3/8 Inch Grommet 4 Inch Probe Cap With 3/8 Inch Grommet](https://shop.sourcena.com/lowres/detail/116M-0375.jpg)
4 Inch Probe Cap With 3/8 Inch Grommet
Item No. 116M-0375
Drilled and tapped to accept 3/8 Inch wire grommet to secure an electronic tang gauge probe in a tank riser pipe
![Replacement Drain Plug Kit For 1-2100 Series Manholes Replacement Drain Plug Kit For 1-2100 Series Manholes](https://shop.sourcena.com/lowres/detail/1DP-2100.jpg)
Replacement Drain Plug Kit For 1-2100 Series Manholes
Item No. 1DP-2100
Designed to eliminate the problems associated with water entering grade level spill containers
![Aluminum 4 Inch Tank Monitor Cap With 3/8 Inch, EVR Approved Aluminum 4 Inch Tank Monitor Cap With 3/8 Inch, EVR Approved](https://shop.sourcena.com/lowres/detail/305XP-0100ACEVR.jpg)
Aluminum 4 Inch Tank Monitor Cap With 3/8 Inch, EVR Approved
Item No. 305XP-0100ACEVR
Aluminum 4 inch threaded port hole 3/8 inch, 2 pound
![4 Inch Tank Monitoring Cap/Adapter Combination With 3/8 Inch Hole 4 Inch Tank Monitoring Cap/Adapter Combination With 3/8 Inch Hole](https://shop.sourcena.com/lowres/nophoto.gif)
4 Inch Tank Monitoring Cap/Adapter Combination With 3/8 Inch Hole
Item No. 305XPA-0100AK
Keeps water dirt and debris out of the tank prevents vapors from escaping
![2 Inch Tank Monitor Cap & Adapter With 3/8 Inch Threaded Porthole And Cable Connector 2 Inch Tank Monitor Cap & Adapter With 3/8 Inch Threaded Porthole And Cable Connector](https://shop.sourcena.com/lowres/detail/305XPA-2200AK.jpg)
2 Inch Tank Monitor Cap & Adapter With 3/8 Inch Threaded Porthole And Cable Connector
Item No. 305XPA-2200AK
Combination cap and Adapter kit for leak detection systems
![4 Inch Aluminum Tank Monitor Cap And Adapter 3/8 Inch Grommet 4 Inch Aluminum Tank Monitor Cap And Adapter 3/8 Inch Grommet](https://shop.sourcena.com/lowres/detail/62M-0375.jpg)
4 Inch Aluminum Tank Monitor Cap And Adapter 3/8 Inch Grommet
Item No. 62M-0375
The 62M Monitoring Probe & Adapter Kit includes a 4 inch side-sealing Adapter 4 inch side-sealing cap (tapped) and a 3/8 inch wire grommet to secure the cable from an electronic tank gauge probe in the tank riser pipe
![Defender Series 11 Foot Long Sectional/Collapsible Remote Testing Tool Defender Series 11 Foot Long Sectional/Collapsible Remote Testing Tool](https://shop.sourcena.com/lowres/detail/708534901.jpg)
Defender Series 11 Foot Long Sectional/Collapsible Remote Testing Tool
Item No. 708534901
Remote Testing Tool allows for primary functionality testing of the magnetically-coupled actuator system without having to remove the entire OPV assembly from the riser.
![4 inch 71SO Series Non-Vaportight OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank With 5 Foot Burial 4 inch 71SO Series Non-Vaportight OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank With 5 Foot Burial](https://shop.sourcena.com/lowres/detail/71SO-4000.jpg)
4 inch 71SO Series Non-Vaportight OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank With 5 Foot Burial
Item No. 71SO-4000
The OPW 71SO Overfill Prevention Valve is a 2-Point Shut-off Valve designed to prevent the overfill of Underground Storage Tanks by providing a positive shut-off of product delivery. When the liquid level rises to about 95 Percent of tank capacity, the valve automatically slows flow. If the delivery is not stopped and liquid rises to about 98 Percent of tank capacity, the valve closes completely and liquid cannot flow.
![4 inch 71SO Series CARB EVR Certified Vaportight OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank With 5 Foot Burial 4 inch 71SO Series CARB EVR Certified Vaportight OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank With 5 Foot Burial](https://shop.sourcena.com/lowres/detail/71SO-400C.jpg)
4 inch 71SO Series CARB EVR Certified Vaportight OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank With 5 Foot Burial
Item No. 71SO-400C
The OPW 71SO Overfill Prevention Valve is a 2-Point Shut-off Valve designed to prevent the overfill of Underground Storage Tanks by providing a positive shut-off of product delivery. When the liquid level rises to about 95 Percent of tank capacity, the valve automatically slows flow. If the delivery is not stopped and liquid rises to about 98 Percent of tank capacity, the valve closes completely and liquid cannot flow.
![4 inch 71SO Series CARB EVR Certified Vaportight Testable OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank With 5 Foot Burial 4 inch 71SO Series CARB EVR Certified Vaportight Testable OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank With 5 Foot Burial](https://shop.sourcena.com/lowres/detail/71SO-400CT.jpg)
4 inch 71SO Series CARB EVR Certified Vaportight Testable OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank With 5 Foot Burial
Item No. 71SO-400CT
The OPW 71SO Overfill Prevention Valve is a 2-Point Shut-off Valve designed to prevent the overfill of Underground Storage Tanks by providing a positive shut-off of product delivery. When the liquid level rises to about 95 Percent of tank capacity, the valve automatically slows flow. If the delivery is not stopped and liquid rises to about 98 Percent of tank capacity, the valve closes completely and liquid cannot flow.
![4 inch 71SO Series Non-Vaportight OPV Overfill Prevention Valve For Up To 10 Foot Diameter Tank With 10 Foot Burial 4 inch 71SO Series Non-Vaportight OPV Overfill Prevention Valve For Up To 10 Foot Diameter Tank With 10 Foot Burial](https://shop.sourcena.com/lowres/detail/71SO-4010.jpg)
4 inch 71SO Series Non-Vaportight OPV Overfill Prevention Valve For Up To 10 Foot Diameter Tank With 10 Foot Burial
Item No. 71SO-4010
The OPW 71SO Overfill Prevention Valve is a 2-Point Shut-off Valve designed to prevent the overfill of Underground Storage Tanks by providing a positive shut-off of product delivery. When the liquid level rises to about 95 Percent of tank capacity, the valve automatically slows flow. If the delivery is not stopped and liquid rises to about 98 Percent of tank capacity, the valve closes completely and liquid cannot flow.
![4 inch 71SO Series CARB EVR Certified Vaportight OPV Overfill Prevention Valve For Up To 12 Foot Diameter Tank With 10 Foot Burial 4 inch 71SO Series CARB EVR Certified Vaportight OPV Overfill Prevention Valve For Up To 12 Foot Diameter Tank With 10 Foot Burial](https://shop.sourcena.com/lowres/detail/71SO-420C.jpg)
4 inch 71SO Series CARB EVR Certified Vaportight OPV Overfill Prevention Valve For Up To 12 Foot Diameter Tank With 10 Foot Burial
Item No. 71SO-420C
The OPW 71SO Overfill Prevention Valve is a 2-Point Shut-off Valve designed to prevent the overfill of Underground Storage Tanks by providing a positive shut-off of product delivery. When the liquid level rises to about 95 Percent of tank capacity, the valve automatically slows flow. If the delivery is not stopped and liquid rises to about 98 Percent of tank capacity, the valve closes completely and liquid cannot flow.
![4 inch 71SO Series CARB EVR Certified Vaportight E85-Compatible OPV Overfill Prevention Valve For Up To 10 Foot Diameter Tank With 10 Foot Burial 4 inch 71SO Series CARB EVR Certified Vaportight E85-Compatible OPV Overfill Prevention Valve For Up To 10 Foot Diameter Tank With 10 Foot Burial](https://shop.sourcena.com/lowres/detail/71SOM-412C.jpg)
4 inch 71SO Series CARB EVR Certified Vaportight E85-Compatible OPV Overfill Prevention Valve For Up To 10 Foot Diameter Tank With 10 Foot Burial
Item No. 71SOM-412C
The OPW 71SO Overfill Prevention Valve is a 2-Point Shut-off Valve designed to prevent the overfill of Underground Storage Tanks by providing a positive shut-off of product delivery. When the liquid level rises to about 95 Percent of tank capacity, the valve automatically slows flow. If the delivery is not stopped and liquid rises to about 98 Percent of tank capacity, the valve closes completely and liquid cannot flow.
![Overfill Prevention Valve Dual Point Vapor-Tight 4 Inch X 13 Foot [Evr] Overfill Prevention Valve Dual Point Vapor-Tight 4 Inch X 13 Foot [Evr]](https://shop.sourcena.com/lowres/detail/A1100EVR-055.jpg)
Overfill Prevention Valve Dual Point Vapor-Tight 4 Inch X 13 Foot [Evr]
Item No. A1100EVR-055
Screw together style
![Overfill Prevention Valve Dual Point Vapor-Tight 4 Inch X 15 Foot [Evr] Overfill Prevention Valve Dual Point Vapor-Tight 4 Inch X 15 Foot [Evr]](https://shop.sourcena.com/lowres/detail/A1100EVR-056.jpg)
Overfill Prevention Valve Dual Point Vapor-Tight 4 Inch X 15 Foot [Evr]
Item No. A1100EVR-056
Screw together style
![8 Inch X 12 Inch Aluminum Sign Red On White - Overfill Alarm 8 Inch X 12 Inch Aluminum Sign Red On White - Overfill Alarm](https://shop.sourcena.com/lowres/detail/M-58.jpg)
8 Inch X 12 Inch Aluminum Sign Red On White - Overfill Alarm
Item No. M-58
Aluminum Sign with red characters on white background
![4 Inch EVR Approved Tank Monitor Cap With 3/8 Inch Threaded Porthole And Cable Connector 4 Inch EVR Approved Tank Monitor Cap With 3/8 Inch Threaded Porthole And Cable Connector](https://shop.sourcena.com/lowres/detail/305XP-0200ACEVR.jpg)
4 Inch EVR Approved Tank Monitor Cap With 3/8 Inch Threaded Porthole And Cable Connector
Item No. 305XP-0200ACEVR