Catch Basin Inserts
Catch Basin Inserts

Storm Drain Inserts for Sediment and Trash Capture
Catch Basin Inserts provide simple, effective stormwater pretreatment to protect downstream water quality.
Catch Basin Inserts are installed directly inside storm drains to capture pollutants at the inlet before they enter the stormwater system. These inserts remove sediment, trash, debris, hydrocarbons, nutrients, and dissolved metals, delivering straightforward pretreatment that supports compliance and safeguards downstream water quality. Designed to fit a variety of catch basin sizes and site conditions, inserts can be tailored with filter media to address specific water quality goals.
Proven Catch Basin Insert Options
Catch basin inserts offer reliable pretreatment right at the source, reducing maintenance demands downstream while protecting overall water quality. A range of configurations is available to address different site conditions and pollutant challenges, including:
- StormBasin: Cartridge-based system that removes sediment, trash, bacteria, nutrients, oils/grease, and heavy metals. Uses customizable filter cartridges to target pollutants of concern.
- StormSack PLUS: Geotextile insert featuring a high-flow replaceable filter bag and oil absorbent boom. Designed to capture trash, debris, sediments, and hydrocarbons. Ideal for industrial and commercial settings such as vehicle yards and parking lots.
- Fabco ScreenBox: Durable filter system that traps sediment and debris while allowing treated runoff to exit through the drain. Suitable for commercial sites, roadways, fueling locations, transportation hubs, and other stormwater hot spots.
Effective Pretreatment Made Simple
Catch Basin Inserts deliver a practical, high-impact way to cut pollution at the source. By capturing contaminants right at the inlet, they stop sediment, trash, and oils before they enter the system. This early interception not only protects downstream infrastructure but also lowers maintenance demands and boosts the effectiveness of the entire stormwater treatment process.
Practical Pretreatment that Protects the System
Modern drainage networks rely on early interception to keep stormwater infrastructure effective and long lasting. Nexterra's Catch Basin Inserts fill this role by providing an inlet-level barrier that captures pollutants before they travel further into the system. Instead of relying only on end-of-pipe treatment, these inserts stop problems at the source, extending the life of downstream assets.


How Inserts Contribute to Cleaner Water
Catch Basin Inserts are engineered systems that create an immediate barrier to stormwater pollutants while allowing water to keep flowing through the network. This approach improves both efficiency and reliability, giving municipalities and site owners an affordable first layer of protection. Core performance advantages include:
- Blocking gross solids and floatables before they clog or damage downstream systems
- Pretreating flows to improve the performance of vaults, ponds, or filtration units further in the network
- Reducing maintenance by capturing pollutants where they are easiest to remove
- Supporting compliance strategies by keeping high-impact contaminants out of receiving waters
Installation and Integration
Because every drainage network is unique, Nexterra's Catch Basin Inserts are designed with flexibility in mind. They can be placed directly into existing inlets as a retrofit solution or integrated into new construction with minimal adjustments. Their lightweight, modular components make installation straightforward, even in busy sites where downtime must be limited. Installation benefits include:
- Configurations that adapt to varied basin dimensions and shapes
- Quick placement and removal without heavy machinery
- Compatibility with curb inlets, grate inlets, and custom openings
- Minimal disruption to paved surfaces during installation


Where Catch Basin Inserts Add Value
Catch Basin Inserts shine in environments where pollutants build up quickly and must be intercepted immediately. Positioned at the inlet, they can be deployed across a drainage network to provide broad protection while keeping overall costs manageable. Common project types that benefit are:
- Dense urban streetscapes where trash and debris enter drains with every storm
- Redevelopment projects upgrading outdated drainage systems with modern treatment
- Facilities with frequent vehicle traffic where oils and sediments are present
- Municipal programs seeking scalable solutions to meet pollutant reduction targets
Upstream and Downstream Allies of Catch Basin Inserts
The performance and longevity of inserts are maximized when paired with other stormwater management products. Working together, these systems create a tiered defense that captures pollutants, manages flow, and ensures clean water continues downstream.
- Rain Guardian captures trash, leaves, and sediment at the inlet, protecting inserts from clogging and reducing maintenance
- PreTX removes coarse sediment and oils, delivering cleaner flows that let inserts focus on fine pollutant removal
- FocalPoint polishes water quality after the insert by filtering nutrients and hydrocarbons to meet stringent standards
- R Tank stores and infiltrates treated water, reducing runoff volumes and supporting groundwater recharge
- SmartPond manages flows downstream, ensuring filtered water is detained and released at optimal rates for long-term performance
Long-Term Reliability
The effectiveness of Catch Basin Inserts is tied not just to what they capture, but how they perform over years of service. Inserts are built for durability and ease of upkeep, ensuring predictable performance and lower lifecycle costs. Designed for long-term performance through:
- Materials that withstand repeated wet-dry cycles and roadway contaminants
- Designs that keep captured debris dry, making removal safer and less labor intensive
- Modular replacement components that simplify upkeep and extend service life
- Field-proven operation that shows consistent performance across storm events
Support Material
Nexterra Environmental partners with leading manufacturers to deliver the industry’s most trusted solutions.