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![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]")
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]](https://shop.sourcena.com/lowres/detail/A1100EVR-056.jpg "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]
Item No. A1100EVR-056
Screw together style
1 Inch NPT Stainless Steel Inline Anti-Siphon Valve With Thermal Expansion Relief 0-5 Foot W.C.
Item No. 912-100500AV
Normally closed valve helps prevent accidental siphoning of product from tank due to downstream leak below liquid level.
1 Inch NPT Stainless Steel Inline Anti-Siphon Valve With Thermal Expansion Relief 5-10 Foot W.C.
Item No. 912-101000AV
Normally closed valve helps prevent accidental siphoning of product from tank due to downstream leak below liquid level.
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.
4 inch 61SOM Series Dual-Point CARB-Approved E85/M85/M100 OPV Overfill Prevention Valve For Up To 10 Foot Burial Tank Without Lower Tube - 3 Inch Smith FRP Pipe Required
Item No. 61SOM-412C-EVR
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 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
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
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
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 10 Foot Diameter Tank With 10 Foot Burial
Item No. 71SO-410C
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 10 Foot Diameter Tank With 10 Foot Burial
Item No. 71SO-410CT
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
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.
1/2 Inch NPT Stainless Steel Inline Anti-Siphon Valve With Thermal Expansion Relief 0-5 Foot W.C.
Item No. 912-050500AV
Normally closed valve helps prevent accidental siphoning of product from tank due to downstream leak below liquid level.
3/4 Inch NPT Stainless Steel Inline Anti-Siphon Valve With Thermal Expansion Relief 0-5 Foot W.C.
Item No. 912-070500AV
Normally closed valve helps prevent accidental siphoning of product from tank due to downstream leak below liquid level.
3/4 Inch NPT Stainless Steel Inline Anti-Siphon Valve With Thermal Expansion Relief 5-10 Foot W.C.
Item No. 912-071000AV
Normally closed valve helps prevent accidental siphoning of product from tank due to downstream leak below liquid level.
1/2 Inch NPT Stainless Steel Inline Anti-Siphon Valve With Thermal Expansion Relief 5-10 Foot W.C.
Item No. 912-051000AV
Normally closed valve helps prevent accidental siphoning of product from tank due to downstream leak below liquid level.
Dual Point Autolimiter II Overfill Prevention Valve 5 Foot Upper Tube / 8 Foot Lower Tube
Item No. 70849101
Up to 10 foot diameter tank
Manifold Assembly Cover
Item No. 400197930
Check valve cover with plug, O-ring, hex bolts and washers
12 Inch Triangle Cast Iron Bolted Monitoring Well Cover Only
Item No. 65TE-12-B1
API 1615 triangle design clearly and visually eliminates tank truck personnel from mistaking the manhole as a standard fill.