01
A footprint for every site
Cubic to save space, cylindrical for higher volume, underground to reclaim floor area, or sub-base to mount inside the generator itself.
Choose your flow class
Sized to the tank in front of you.
Select a model to see where it fits in the family. Every class shares the same filtration, controls, and enclosure — only the flow rate changes.
UM6-C
Cylindrical · Stainless300-4000 GAL (1200 - 16000L)
A cylindrical stainless-steel DEF urea storage tank for generator SCR, scaling to higher volumes than the cubic UM6-S. The space-saving cylindrical form suits enclosures and generator rooms, with the same instrumentation, heater, and pump customization in single-wall, double-wall, or double-wall insulated construction.
Power
120-230 VAC, 1 Phase
Controller
UL 508, PLC Basis with HMI
Best for
Higher-volume bulk DEF storage
UM6-CU
Underground · Stainless1000-3000 GAL (4000 - 12000L)
An underground DEF urea storage tank in single- or double-wall stainless steel with an exterior HDPE coating for buried service. It reclaims valuable floor space while providing bulk DEF for generator SCR, and can be customized with instrumentation, heaters, and pumps.
Power
120-230 VAC, 1 Phase
Controller
UL 508, PLC Basis with HMI
Best for
Buried bulk storage that reclaims floor space
UM6-P
Cubic · HDPE25-1000 GAL (100 - 4000L)
The same cubic DEF storage tank in corrosion-proof HDPE plastic — a lightweight, cost-saving alternative to stainless for generator SCR storage. Space-saving in enclosures and generator rooms, and customizable with the same instrumentation, heaters, and pumps as the stainless UM6-S.
Power
120-230 VAC, 1 Phase
Controller
UL 508, PLC Basis with HMI
Best for
Lightweight, cost-saving DEF storage
UM6-S
Cubic · Stainless25-1000 GAL (100 - 4000L)
A cubic stainless-steel DEF urea storage tank for generator SCR emissions control. The space-saving cubic design fits crowded generator rooms and enclosures, and can be customized with instrumentation, heaters, and pumps in single-wall, double-wall, or double-wall insulated construction.
Power
120-230 VAC, 1 Phase
Controller
UL 508, PLC Basis with HMI
Best for
Space-saving DEF storage in genset rooms & enclosures
UM6-SB
Sub-Base Mount250-1000 GAL (400 - 4000L)
A low-profile DEF urea storage tank engineered to mount inside the generator sub-base. Construction is double-wall stainless steel with internal insulation, and it includes a DEF transfer pump with pressure control plus the standard instrumentation, heater, and temperature-control options.
Power
120-230 VAC, 1 Phase
Controller
UL 508, PLC Basis with HMI
Transfer
Pump + pressure control
Best for
Low-profile DEF tank inside the generator sub-base
UM6-TC
Temperature Controlled25-1000 GAL (100 - 4000L)
A temperature-controlled storage tank that protects DEF urea from degradation caused by high or low temperature exposure. The walk-in enclosure keeps equipment and control monitoring in a protected space, and can be customized with instrumentation, heaters, and pumps.
Power
120-230 VAC, 1 Phase
Controller
UL 508, PLC Basis with HMI
Best for
Protects DEF from freeze & heat degradation
Flow range
Family span · 0–300 GPM
0
1000
2001
3001
4001 GAL
Shared technology
The same engineering, hot or cold
02
Built for generator SCR
Designed specifically for generator SCR systems — safe DEF urea storage that keeps emissions controls supplied on demand.
03
Corrosion-proof materials
Tanks in 304 stainless steel or lightweight HDPE, in single-wall, double-wall, or double-wall insulated construction.
04
Controls & BMS integration
UL 508 PLC controls with HMI communicate tank status to BAS, generator controls, switchgear, security, and fire-alarm systems.
Model comparison
The whole family, side by side.
Model
Capacity
Power
Controller
Best for
UM6-C
Cylindrical · Stainless
300-4000 GAL (1200 - 16000L)
120-230 VAC, 1 Phase
UL 508, PLC Basis with HMI
Higher-volume bulk DEF storage
UM6-CU
Underground · Stainless
1000-3000 GAL (4000 - 12000L)
120-230 VAC, 1 Phase
UL 508, PLC Basis with HMI
Buried bulk storage that reclaims floor space
UM6-P
Cubic · HDPE
25-1000 GAL (100 - 4000L)
120-230 VAC, 1 Phase
UL 508, PLC Basis with HMI
Lightweight, cost-saving DEF storage
UM6-S
Cubic · Stainless
25-1000 GAL (100 - 4000L)
120-230 VAC, 1 Phase
UL 508, PLC Basis with HMI
Space-saving DEF storage in genset rooms & enclosures
UM6-SB
Sub-Base Mount
250-1000 GAL (400 - 4000L)
120-230 VAC, 1 Phase
UL 508, PLC Basis with HMI
Low-profile DEF tank inside the generator sub-base
UM6-TC
Temperature Controlled
25-1000 GAL (100 - 4000L)
120-230 VAC, 1 Phase
UL 508, PLC Basis with HMI
Protects DEF from freeze & heat degradation
All models filter water + particulate to 1 micron · ISO 18/16/13 · NEMA 4 (IP65) · C81 controller, BACnet / Modbus
Built for DEF storage
Storage that fits the site, not the other way around.
Space-saving in the genset room
Cubic and cylindrical stainless or HDPE tanks store 25–4000 gallons of DEF, fitting crowded enclosures and generator rooms.
Underground & sub-base options
The UM6-CU buries bulk storage to reclaim floor space; the UM6-SB mounts a low-profile tank inside the generator sub-base itself.
Temperature protection
The UM6-TC walk-in enclosure protects DEF from freeze and high-temperature degradation while keeping equipment accessible.
Adaptable for special operation
Dual inlet valves, monitored valve positions, overflow pumping, emergency evacuation, fluid metering, and high-temp control.
Equipment & options
Configured for your install.
Every UM6 tank ships with a complete vent, gauge, sensor, and connection package for DEF, and adapts to the material, wall type, footprint, and control requirements of the site.
Standard equipment
Inlet solenoid valves with strainer & ball valve
4- or 5-point level sensor + leak sensor
Standard & emergency vents
Direct-read level gauge
Inspection port & cap
DEF supply & return connections
UL 508 PLC controller with HMI
Options
Single / double wall / DW insulated
Stainless 304, HDPE, or HDPE-coated underground
Level & temperature transmitters
Heaters & enclosure temperature control
DEF transfer pump with pressure control (SB)
Modbus / BACnet connectivity