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![4 Inch X 3 Inch Concentric Reducer (2 Piece) 4 Inch X 3 Inch Concentric Reducer (2 Piece)](https://shop.sourcena.com/lowres/detail/012040-238-3.jpg)
4 Inch X 3 Inch Concentric Reducer (2 Piece)
Item No. 012040-238-3
UL971 listed and also available in 5 inch x 4 inch
![8 Inch Flanged 8 Ounce/Square Inch Aluminum Emergency Vent With Cast Iron Cover And FKM Viton A O-Ring UL 2583 And ULC Listed 8 Inch Flanged 8 Ounce/Square Inch Aluminum Emergency Vent With Cast Iron Cover And FKM Viton A O-Ring UL 2583 And ULC Listed](https://shop.sourcena.com/lowres/detail/244OF-0100AV.jpg)
8 Inch Flanged 8 Ounce/Square Inch Aluminum Emergency Vent With Cast Iron Cover And FKM Viton A O-Ring UL 2583 And ULC Listed
Item No. 244OF-0100AV
UL Listed emergency vent (pressure relief only) used on aboveground storage tanks, as a code requirement, to help prevent the tank from becoming over-pressurized and possibly rupturing if ever exposed to fire.
![8 Inch Flanged 16 Ounce/Square Inch Aluminum Emergency Vent With Cast Iron Cover And FKM Viton A O-Ring UL 2583 And ULC Listed 8 Inch Flanged 16 Ounce/Square Inch Aluminum Emergency Vent With Cast Iron Cover And FKM Viton A O-Ring UL 2583 And ULC Listed](https://shop.sourcena.com/lowres/detail/244OF-0200AV.jpg)
8 Inch Flanged 16 Ounce/Square Inch Aluminum Emergency Vent With Cast Iron Cover And FKM Viton A O-Ring UL 2583 And ULC Listed
Item No. 244OF-0200AV
UL Listed emergency vent (pressure relief only) used on aboveground storage tanks, as a code requirement, to help prevent the tank from becoming over-pressurized and possibly rupturing if ever exposed to fire.
![1-1/2 Inch Female NPT x 3 Inch Shorty Offset Adapter 1-1/2 Inch Female NPT x 3 Inch Shorty Offset Adapter](https://shop.sourcena.com/lowres/detail/303-1530.jpg)
1-1/2 Inch Female NPT x 3 Inch Shorty Offset Adapter
Item No. 303-1530
Compensates for misalignment of dispenser suction stub and dispenser boxes.
![Fiberglass Dispenser Sump Double Wall 40 Inch X 21 Inch Fiberglass Dispenser Sump Double Wall 40 Inch X 21 Inch](https://shop.sourcena.com/lowres/nophoto.gif)
Fiberglass Dispenser Sump Double Wall 40 Inch X 21 Inch
Item No. FDS-4021-DW
Allows the supply piping to enter and/or exit out of the sidewall of the containment sump at very low elevation.
![4 Inch X 3 Inch Termination Without Tap (2 Piece) 4 Inch X 3 Inch Termination Without Tap (2 Piece)](https://shop.sourcena.com/lowres/detail/012040-235-3.jpg)
4 Inch X 3 Inch Termination Without Tap (2 Piece)
Item No. 012040-235-3
UL971 listed and also available in 4 inch x 6 inch
![Fiberglass Dispenser Sump, Single Wall, For Encore 40 Inch X 21 Inch (FDS-4021) Fiberglass Dispenser Sump, Single Wall, For Encore 40 Inch X 21 Inch (FDS-4021)](https://shop.sourcena.com/lowres/detail/FDS-4021-SL.jpg)
Fiberglass Dispenser Sump, Single Wall, For Encore 40 Inch X 21 Inch (FDS-4021)
Item No. FDS-4021-SL
Comes with 2 inch rain lip