3" & 4" Flow Gate

COMING SOON!
The Polylok 4 in. Flow Gate is designed to help solve multiple drainage needs. It can be used with 3 in. and 4 in. drain and sewer fittings. Allows water to be diverted and released to water-safe areas away from structures, erosion-prone landscapes and poor drainage areas.

Similar Products

3", 4" & 6" Round Grates

These round grates are designed to fit all pipe sizes with these diameters. They are manufactured in the United States using structural foam (HDPE). Ideal for residential or commercial applications.

4" Atrium Grate

Polylok's Atrium Grate is perfect for garden beds and other areas where floatable debris like mulch or leaves would clog.

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!

Trench & Channel Rain Drains

The Polylok Channel Rain Drains is the Complete Surface Water Drainage Solution. The durability & high performance of the " Channel Rain Drains" ensures a long lasting, permanent solution to the collection and dispersal of standing surface water. Use our Channel Rain Drains around driveways, patios, walkways or any other area that you need to get rid of standing surface water.

12" Round Drainage Boxes

The Polylok Drainage Boxes is the most versatile box on the market today. You can choose what height drainage boxes you want your inlets and outlets to be. It also comes complete with the only seal of drainage boxes in the market that accepts 2'', 3'',4'' and corrugated pipe. No more different fittings to inventory!

U.S. Patent No# 6,666,349 & 6,817,631

20" Round Drain Box

We have your solution to all of your drainage needs with our new 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 box 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!

U.S. Patent No# 6,666,349 & 6,817,631

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.

Polylok Heavy Duty Channel & Trench Drain

Our Channel and Trench Drain system is engineered to deliver the most flexibility in a heavy duty design. The Polylok Heavy Duty Trench Drain is H-20 wheel load rated when cast in reinforced concrete (as per Polylok Trench Drain H-20 Instruction Diagram). It offers a modular design with interlocking components to enable quick and easy connections. Each segment is 4’ in length and comes with a reversible ADA compliant grate that can either be flat or allow for a 3/16” convex surface.

Our Channel and Trench Drain design isn’t just a great design, it’s engineered with a smooth installation in mind. Each 4’ segment can be joined together or cut down to 12” increments. Each Channel and Trench Drain segment has eight (8) anchor positions to allow rebar to be installed to prevent floating. There are two sections on each segment to allow 2x4s to be installed to aid in leveling and anchoring prior to pouring concrete. There are four drainage ports on each segment to enable 3” and 4” SCH40 or 4” SDR35 connections. Each segment is shipped with screws to fasten the grates to the channel and to secure the interlocking pieces. No need to visit the hardware store.

Start using the Polylok Heavy Duty Channel and Trench Drain system and you will never use another one! We’re sure of it!

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.