Underground Storage Tank Equipment
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![Contractor Plug Contractor Plug](https://shop.sourcena.com/lowres/detail/400236903.jpg)
Contractor Plug
Item No. 400236903
Used to seal underground wiring coming into the submersible junction box ( 400651930 )
![Brass Manual Relief Screw Assembly Brass Manual Relief Screw Assembly](https://shop.sourcena.com/lowres/detail/400629901.jpg)
Brass Manual Relief Screw Assembly
Item No. 400629901
Includes 400627001 retaining ring, 400616001 manual relief screw, 400333012 relief screw top O-ring, and 400333007 relief screw bottom O-ring
![2 Inch NPT Thread-On Aluminum Pressure Vacuum Vent 2-1/2 - 6 Inch Range Water Column Pressure 6 - 10 Inch Range Vacuum 2 Inch NPT Thread-On Aluminum Pressure Vacuum Vent 2-1/2 - 6 Inch Range Water Column Pressure 6 - 10 Inch Range Vacuum](https://shop.sourcena.com/lowres/detail/A0084-038.jpg)
2 Inch NPT Thread-On Aluminum Pressure Vacuum Vent 2-1/2 - 6 Inch Range Water Column Pressure 6 - 10 Inch Range Vacuum
Item No. A0084-038
Is an internal pressure vacuum valve that restricts vaopr escape during product drops.
![2 Inch O-Ring Seal Pressure Vacuum Vent 2 Inch O-Ring Seal Pressure Vacuum Vent](https://shop.sourcena.com/lowres/detail/80230302.jpg)
2 Inch O-Ring Seal Pressure Vacuum Vent
Item No. 80230302
Vent rates of 8000 cubic feet per hour and vent at 13.8 in WC of pressure and 0.8 in WC of vacuum.
![Non-Discriminating Piping Sump Sensor With 12 Foot Cable Non-Discriminating Piping Sump Sensor With 12 Foot Cable](https://shop.sourcena.com/lowres/detail/794380-208.jpg)
Non-Discriminating Piping Sump Sensor With 12 Foot Cable
Item No. 794380-208
Used On TLS-350 and TLS-450
![3 Inch Thread-On 2-1/2 Inch To 6 Inch Water Column Pressure Vacuum Vent 3 Inch Thread-On 2-1/2 Inch To 6 Inch Water Column Pressure Vacuum Vent](https://shop.sourcena.com/lowres/detail/623V-3203.jpg)
3 Inch Thread-On 2-1/2 Inch To 6 Inch Water Column Pressure Vacuum Vent
Item No. 623V-3203
Pressure Vacuum Vents are installed on the top of vent pipes from underground or above ground fuel storage tanks
![Single Float Non-Discriminating Stand Alone Sensor With Dispenser Control Interface Single Float Non-Discriminating Stand Alone Sensor With Dispenser Control Interface](https://shop.sourcena.com/lowres/nophoto.gif)
Single Float Non-Discriminating Stand Alone Sensor With Dispenser Control Interface
Item No. 847970-001
Connects directly to the dispenser wiring, no console required. Mounting brackets are required 330020-012. CUL Listed.
![Single Float Non-Discriminating Stand Alone Sensor With Dispenser Control Interface Single Float Non-Discriminating Stand Alone Sensor With Dispenser Control Interface](https://shop.sourcena.com/lowres/detail/847990-001.jpg)
Single Float Non-Discriminating Stand Alone Sensor With Dispenser Control Interface
Item No. 847990-001
Connects directly to the dispenser wiring, no console required. Mounting brackets are required 330020-012. UL Listed.
![2 Inch Thread-On 2-1/2 Inch To 6 Inch Water Column Pressure Vacuum Vent 2 Inch Thread-On 2-1/2 Inch To 6 Inch Water Column Pressure Vacuum Vent](https://shop.sourcena.com/lowres/detail/623V-2203.jpg)
2 Inch Thread-On 2-1/2 Inch To 6 Inch Water Column Pressure Vacuum Vent
Item No. 623V-2203
Pressure Vacuum Vents are installed on the top of vent pipes from underground or above ground fuel storage tanks
![2 Inch Pressure Vacuum Vent Slip On 8 Ounce Pressure 1/2 Ounce Vacuum 2 Inch Pressure Vacuum Vent Slip On 8 Ounce Pressure 1/2 Ounce Vacuum](https://shop.sourcena.com/lowres/detail/523V-1150.jpg)
2 Inch Pressure Vacuum Vent Slip On 8 Ounce Pressure 1/2 Ounce Vacuum
Item No. 523V-1150
Factory preset and tested settings
![Electro-Optic Interstitial Sensor Electro-Optic Interstitial Sensor](https://shop.sourcena.com/lowres/detail/FMP-EIS.jpg)
Electro-Optic Interstitial Sensor
Item No. FMP-EIS
Installs in sumps double wall tanks or other dry locations where the presence of a liquid indicates a leak has occured.
![2 Inch Pressure Vacuum Vent Thread On 3 Inch Water Column Pressure 8 Inch Water Column Vacuum 2 Inch Pressure Vacuum Vent Thread On 3 Inch Water Column Pressure 8 Inch Water Column Vacuum](https://shop.sourcena.com/lowres/detail/523V-2203.jpg)
2 Inch Pressure Vacuum Vent Thread On 3 Inch Water Column Pressure 8 Inch Water Column Vacuum
Item No. 523V-2203
Factory preset and tested settings
![2 Inch Pressure Vacuum Vent Slip On 3 Inch Water Column Pressure 8 Inch Water Column Vacuum 2 Inch Pressure Vacuum Vent Slip On 3 Inch Water Column Pressure 8 Inch Water Column Vacuum](https://shop.sourcena.com/lowres/detail/523V-2253.jpg)
2 Inch Pressure Vacuum Vent Slip On 3 Inch Water Column Pressure 8 Inch Water Column Vacuum
Item No. 523V-2253
Factory preset and tested settings
![2 Inch Pressure Vacuum Vent Thread On 8 Ounce Pressure 1/2 Ounce Vacuum 2 Inch Pressure Vacuum Vent Thread On 8 Ounce Pressure 1/2 Ounce Vacuum](https://shop.sourcena.com/lowres/detail/523V-1100.jpg)
2 Inch Pressure Vacuum Vent Thread On 8 Ounce Pressure 1/2 Ounce Vacuum
Item No. 523V-1100
Factory preset and tested settings
![2 Inch Thread-On Pressure/Vacuum Vent 3 Inch Wcp-8 Inch Wcv 2 Inch Thread-On Pressure/Vacuum Vent 3 Inch Wcp-8 Inch Wcv](https://shop.sourcena.com/lowres/detail/4885.jpg)
2 Inch Thread-On Pressure/Vacuum Vent 3 Inch Wcp-8 Inch Wcv
Item No. 4885
Incorporates 3 separate valves to control over-pressure and vacuum conditions that arise in storage tanks.