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.
- Use as Rain Drain, D-Box, or Drop Box; allows for all configurations.
- Use as a rain drain for gutters, driveways & sub surface drainage.
- Use as a distribution box or drop box for onsite septic systems.
- Use with the 12'' riser to bring cover or grate to grade as needed.
- Accepts 2'', 3'', 4'' and corrugated pipe.
- Use with solid cover or grate, your choice, no additional cost.
- Four stabilizing feet with every box.
- 3017-12 (12" Distribution Box with Flat Cover)
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!
Square Catch Basins
Offered in two sizes, Polylok manufactures the most versatile Catch Basin on the market. The basin comes complete with either a black or green grate, and two seals that accept 2", 3", 4", and corrugated pipe. You can choose your inlet and outlet heights, and it can accept one inlet and up to three outlets.
12"x12" Square Distribution Box
The 12" Polylok Square Distribution Box comes factory precut with one inlet and three outlets. Four seal assemblies are provided with each unit and will accept 2”, 3”, and 4” pipe. Optional 6” seals are also available for applications demanding 6” pipe. Polylok’s 12” Square Distribution Box has a 5 gallon capacity and is designed to withstand normal abuse in landscaping applications.
Goes Well With
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
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.
Polylok’s Orifice Diffuser ensures even distribution on lateral piping from all orifices in any system by separating the discharge orifice from the drain media; which effectively protects the system. Because of low pressure in most wastewater systems, typically 1-3 psi, it is extremely important to assure drainage media does not interfere with the discharge orifices. Systems should be designed with the use of an orifice diffuser on all discharge holes to assure even distribution and even system pressure after back-filling.
Polylok's dipper box guarantees uniform dosing for leaching systems. The Dipper is designed on the basic pivot and balance principle which insures equal distribution. The system works in unity instead of a ''trickle effect'' by providing equal flow distribution to each outlet. Polylok’s Dipper is easily installed in any septic system. Whether existing, new, reclining or flat — the action of the Dipper allows the entire system to work in unison. Insist on the DIPPER.
U.S. Patent No# 4,838,731
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.
12" x 6" Risers
Our Risers can be cast into concrete or used with the Polylok D-Box. They come with a flat cover, galvanized steel grate, plastic grate, or with an inspection port. All of our risers have structural ribs on the inside preventing frost from adhering in frost prone areas. Polylok's Risers are the only risers on the market to offer this unique feature.