FryeFlow – Inlet Filter Inlet Filter Bag
This patented catch basin filter system keeps construction dirt out of storm drains while still allowing water to pass through. With its under grate installation and easy cleaning, FryeFlow offers superior sediment control through its patented frame + basket design. Not only does it outperform competing products in terms of keeping streets cleaner, but it also significantly reduces silt accumulation by maintaining better flow.
Maintaining FryeFlow is a breeze. Simply remove the grate, attach a lifting device to the webbing strips, lift out and dump debris. Alternatively, a vac-ter unit can be used. Our reusable bags should be monitored after each storm event to ensure optimal performance.
So, how does FryeFlow work? The secret lies in its patented system, featuring a specially designed metal frame that securely holds a high flow geotextile basket under the grate. This enables water to flow directly through the grate and basket, leaving all sediment and debris behind.
Not only does FryeFlow offer superior performance, but it also saves developers and builders time and money. Unlike traditional over the grate systems, our product is protected from damage caused by street cleaners, snow plows, and other contractors. It’s built to last and doesn’t require constant replacing.
Framed Inlet Protection
Now Available: FryeFlow CBX (Curb Box) is designed to reach back into the curb box. FryeFlow CBX is available as pre-assembled, welded units or Assembly Kits for ease of frame reuse. Meets specifications for Framed Inlet Protection.
Upgrade to FryeFlow today and experience the benefits of a cleaner, more effective sediment control solution.
PRODUCT TYPES
FryeFlow
- Woven geotextile & steel frame provide reliable strength
- Designed to greatly reduce ponding in streets
- Easy to install & maintain; won’t fall into grate
- Reusable system
- System is protected from damage from traffic
FryeFlow CBX
- Installation raises the inlet grate by 1/8”
- 100% of Inlet Device is below the grate and protected from damage
- Device reaches back into the curb box
- Triple flow rates and filtration
- Woven geotextile & steel frame provide reliable strength
- Designed to greatly reduce ponding in streets
- Easy to install & maintain; won’t fall into grate
Frequently Asked Questions
The FryeFlow Inlet Filter Bag is an under-grate storm drain filtration system featuring a patented frame-and-basket design. It captures sediment and debris before runoff enters the drainage system, allowing water to flow through while keeping storm drains cleaner during construction and maintenance activities.
As runoff enters the storm drain, water passes through the high-flow geotextile basket, which filters out sediment and debris. A durable steel frame supports the filter bag beneath the grate, protecting it from traffic loads, equipment, and jobsite wear.
FryeFlow provides effective sediment control while maintaining strong hydraulic performance and reducing surface ponding. The system is reusable, easy to maintain, and protected from damage caused by vehicles, tools, and pedestrian traffic.
FryeFlow is installed beneath storm drain grates in catch basins and inlets located on streets, parking areas, and construction sites. This placement helps prevent sediment from entering storm drains and protects downstream waterways.
Yes. Both the geotextile filter bag and supporting frame are designed for reuse across multiple storm events. After rainfall, the bag can be lifted out, emptied, and reinstalled for continued use.
Yes. By preventing sediment and debris from entering storm drains, FryeFlow supports erosion and sediment control BMP requirements. It can help improve regulatory compliance and reduce long-term maintenance issues.
Yes. The standard FryeFlow model fits many common inlet configurations, while the FryeFlow CBX model extends into curb box openings for additional protection. CBX models provide enhanced filtration coverage for challenging or high-flow installations.
The FryeFlow filter bag is constructed from woven polypropylene geotextile and supported by a durable steel frame. This combination allows for high sediment capture while resisting wear in demanding field conditions.
Copyright © 2026 MKB Company LLC. | All Rights Reserved
All statements, product characteristics, and performance data contained herein are believed to be reliable based on observation and testing, but no representations, guarantees, or warranties of any kind are made as to accuracy, suitability for particular applications, or the results to be obtained. Nothing contained herein is to be considered to be permission or a recommendation to use any proprietary process or technology without permission of the owner. No warranty of any kind, expressed or implied, is made or intended. EnviroSoxx®, Filtrexx®, Filtrexx SiltSoxx®, GreenLoxx®, GroSoxx®, Powered by Filtrexx®, Siltron®, Storm Catcher®, StormExx®, Straw Max®, Switch Sock®, the branch & leaf logo®, and the color GREEN® are Registered Trademarks of MKB Company. DiversionSoxx™, FilterMedia™, GrowingMedia™, and SwitchSoxx™, are Trademarks of MKB Company. US Patents 7,226,240; 7,452,165; 8,439,607; 8,740,503; 10,167,620; 10,704,247; 11,098,472; 11,466,413 and Patents Pending 63/221,435; 62/964,021; 18/114,601; 62/349,890; 17/459,534; 63/070,891 may apply.