Millennium SPW Features and Benefits
Patented breakthrough technology

Patented breakthrough technology

Three new worldwide patented technologies allow Millennium SPW™ to be used wherever single point watering is needed. It allows Millennium SPW™ to be a truly universal system.


Low profile

Low profile

The patented low profile design allows the valves and tubing sit well below the intercell connectors, keeping all of the components out of harms way. This is especially important where the battery compartment has low clearance above the battery, and where batteries are manually handled.


Clampless Tubing

Clampless Tubing

Our patented polypropylene tubing installs in less than half the time of tubing that requires clamps and holds twice as well (up to 125 PSI).Unlike PVC tubing commonly used in competitive SPW systems, Millennium SPW™ tubing will last the lifetime of the battery. It won’t get sticky or deteriorate.


3 Port Swivel T

3 Port Swivel T

Our patented 3 port swivel T rotates a full 360 degrees, making tube routing the most versatile in the industry. The tubing can be routed easily without strain or kinking, while the water supply feed tube can be connected where convenient, not just at one end of the string.


Flip Top

Flip Top

The flip access port allows you to check specific gravity levels quickly & Easily without having to remove the watering system.


Wide pressure range

Wide pressure range

With Millennium’s patented technology, you have more water supply options than every before.The Millennium valve operates under a wide pressure range and is compatible with Millennium SPW™, Snap-Fill™,PowerStream™, Philadelphia Scientific, and BFS water supplies. Just use the appropriate quick coupler on the Millennium SPW™ system to match the available water supply.


Polypropylene Components

Polypropylene Components

Millennium SPW™ valve components are constructed of the same material as cell casings. This means all materials are acid, temperature, and impact resistant to last the lifetime of the battery.


De-Gas Chamber

De-Gas Chamber

The Millennium valve allows each cell to vent gasses normally. The gasses leave the cell through the de-gas chamber separate from the incoming water.


Flame Arrestor (New internal and external) optional

Flame Arrestor (New internal and external) optional

Add the optional flame arrestors to your Millennium valves to make the safest single point watering system on the planet. Approved by major battery manufacturers, Millennium has a built in a necessary safety feature for all stationary batteries, utility vehicle batteries, and other batteries used in potentially dangerous environments such as where the battery is charged inside of the vehicle.


Internal Water Lock


Internal Water Lock

Perhaps the least known feature of the Millennium valve, the internal water lock prevents gases from traveling between cells. In the event of a fire this eliminates the possibility of flame propagation between cells.



Five year warranty

Five year warranty

Flow-Rite Controls stands proudly stands behind all of its products. We include a full 5 year warranty on all Millennium SPW components(excluding water supplies), against defects in materials or workmanship.All valves are date stamped to ensure quality.


Made in the USA

Made in the USA

All Flow-Rite products are designed and manufactured in the U.S.A. by Flow-Rite Controls an ISO 9001 company. This further ensures the highest quality product throughout all stages of production.


Easy and economical ordering

Flow-Rite offers various packaging options provide a new standard for convenience and economy.