3/8 Inch Port
Underground Storage Tank Equipment
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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
![Check Valve With Spring (Red) Check Valve With Spring (Red)](https://shop.sourcena.com/lowres/detail/144-183-5.jpg)
Check Valve With Spring (Red)
Item No. 144-183-5
For spill containment and pressure relief of standard Red Jacket 4 inch submersible pumps
![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
![High Pressure Check Valve Kit For Red Jacket Stp And Variable Speed Stp High Pressure Check Valve Kit For Red Jacket Stp And Variable Speed Stp](https://shop.sourcena.com/lowres/detail/410153-002.jpg)
High Pressure Check Valve Kit For Red Jacket Stp And Variable Speed Stp
Item No. 410153-002
![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
![Isotrol Control Box With Relay Isotrol Control Box With Relay](https://shop.sourcena.com/lowres/detail/880-047-1.jpg)
Isotrol Control Box With Relay
Item No. 880-047-1
Isolates and protects individual dispensers from wiring shorts or phasing issues
![Conduit Junction Box Conduit Junction Box](https://shop.sourcena.com/lowres/detail/108-496-5.jpg)
Conduit Junction Box
Item No. 108-496-5
Conduit junction box - single opening, 2 wire, 2 inch NPT
![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