Medium Burial
Underground Storage Tank Equipment
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![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
![4 inch 61SOR Series Dual-Point Non-Vaportight Remote Fill OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank 4 inch 61SOR Series Dual-Point Non-Vaportight Remote Fill OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank](https://shop.sourcena.com/lowres/detail/61SOR-4000.jpg)
4 inch 61SOR Series Dual-Point Non-Vaportight Remote Fill OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank
Item No. 61SOR-4000
The OPW 61SO Overfill Prevention Valve is a 2-Stage 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 61SOR Series Dual-Point Remote Fill OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank 4 inch 61SOR Series Dual-Point Remote Fill OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank](https://shop.sourcena.com/lowres/detail/61SOR-400C.jpg)
4 inch 61SOR Series Dual-Point Remote Fill OPV Overfill Prevention Valve For Up To 8 Foot Diameter Tank
Item No. 61SOR-400C
The OPW 61SO Overfill Prevention Valve is a 2-Stage 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 X 15 Foot Straight Drop Tube 4 Inch X 15 Foot Straight Drop Tube](https://shop.sourcena.com/lowres/detail/61T-7368.jpg)
4 Inch X 15 Foot Straight Drop Tube
Item No. 61T-7368
Installed in the fill riser pipe to an underground storage tank
![5 Gallon Composite Bucket With Plug 5 Gallon Composite Bucket With Plug](https://shop.sourcena.com/lowres/detail/P511-PEVRBUCKET.jpg)
5 Gallon Composite Bucket With Plug
Item No. P511-PEVRBUCKET
Studded mounting ring eliminates leak path
![5 Gallon Spill Bucket Cast Iron Base Plug 5 Gallon Spill Bucket Cast Iron Base Plug](https://shop.sourcena.com/lowres/detail/P761C-EVRPL.jpg)
5 Gallon Spill Bucket Cast Iron Base Plug
Item No. P761C-EVRPL
Replacement For 700L Series Secondary Containment Manholes
![Medium Burial Tank Sump 45 Inch Base Fits 42 Inch Manhole Medium Burial Tank Sump 45 Inch Base Fits 42 Inch Manhole](https://shop.sourcena.com/lowres/nophoto.gif)
Medium Burial Tank Sump 45 Inch Base Fits 42 Inch Manhole
Item No. TSM-4542
Ribbed riser allows for simple 3 inch height adjustments using standard tools
![2 Inch x 6 Foot CARB EVR Approved Aluminum Straight Drop Tube 2 Inch x 6 Foot CARB EVR Approved Aluminum Straight Drop Tube](https://shop.sourcena.com/lowres/detail/419-02061TEVR.jpg)
2 Inch x 6 Foot CARB EVR Approved Aluminum Straight Drop Tube
Item No. 419-02061TEVR
Directs product flow to liquid level when filling a storage tank
![Medium Bury Polyethylene Tank Sump With Mechanically Fastened Cover Medium Bury Polyethylene Tank Sump With Mechanically Fastened Cover](https://shop.sourcena.com/lowres/detail/TSM-4536.jpg)
Medium Bury Polyethylene Tank Sump With Mechanically Fastened Cover
Item No. TSM-4536
36 inch manway diameter x 45 inch base one piece design provides reliable watertight integrity and long product life
![5 Gallon Cast Iron Vapor Bucket With Plug 5 Gallon Cast Iron Vapor Bucket With Plug](https://shop.sourcena.com/lowres/nophoto.gif)
5 Gallon Cast Iron Vapor Bucket With Plug
Item No. P511C-PEVRBUCKET
Studded mounting ring eliminates leak path
![4 Inch X 12 Foot Heavy Duty Drop Tube (2-Pack) 4 Inch X 12 Foot Heavy Duty Drop Tube (2-Pack)](https://shop.sourcena.com/lowres/detail/78220412-2.jpg)
4 Inch X 12 Foot Heavy Duty Drop Tube (2-Pack)
Item No. 78220412-2
Heavy wall model for increased durability