Patented weir opening maintains equal flow even in distribution of unlevel D - Boxes that continue to move their entire lives. Simple to install, just push into any 4'' pipe, SCH. 40, SDR 35, and thin wall. Adjustment knob moves opening up or down in 1/16'' increments; total movement is 7/8''. It has a watertight fit and is made with tough engineered plastic that will not corrode. equal flow distribution boxes can be installed without tools.
Patent No# 5,154,353; 5,107,892; 5,680,989
- Maintains equal flow from distribution box.
- Automatically compensates for box movement.
- Engineered plastic is non-corrosive.
- Extends septic system life.
- Inserts without tools.
- 3049 (Equalizer)
Roto-Flow enables equal distribution to your leaching fields. Available in 3'' and 4'' sizes. The Roto-Flow gives you the low cost solution to your D-Box flow regulating problems. The simple Roto-Flow for D-Box outlet pipes gives you the easiest “set & forget” flow regulator available. The Roto-Flow fits both Schedule 40, SDR 35 and thin wall pipe sizes. Simply place the Roto-Flow into the D-Box outlet pipe, and adjust to equalize flow.
Ideal for alternating or dividing flows between two separate fields. Easily installs by attaching directly to SCH 40 or SDR 35 pipe. Our unique channel split design enables an equal split of the waste stream. Additionally the valve can be set for equal distribution (factory setting) or all distribution to the right or left.
Goes Well With
12" Distribution Boxes
The Polylok Distribution Box is the most versatile box on the market today. You can choose what height of distribution boxes you want your inlets and outlet slotted filters to be. It also comes compete with the only seal on the market of distribution boxes that accepts 2”, 3”, 4” and corrugated pipe. No more different fittings in distribution boxes to inventory! It also comes with stabilizing feet to anchor the box.
20" Distribution and Valve Box (8 Hole,7 Hole, 6 Hole)
We have the solution to all of your drainage needs with our 20” Drain, Valve, & Meter Box! This box is great for large applications such as golf courses but is also a suitable size for the home. There’s no need to worry about different colored fittings or plugs to inventory because as well as accepting 2”, 3” & 4” pipe, our equal flow distribution boxes can also accept 6” pipe. Our 20” Drain Box will also accept our 20” Risers so you can easily bring the Drain Box to grade. It is the most versatile Drain Box available on the market today!
Rain Drainage Boxes
Solve drainage problems anywhere with our Rain Drain. It’s easy to use, installs in minutes and blends with your landscape. We sell the Steel forms so you can make your own Rain Drainage Boxes. We have sold more rain drain molds than any other manufacturer. Once you start making your own Drain Boxes and start making additional money, we supply the grates that go with it.
U.S. Patent No# 5,130,016