SonarOne®

Pre emergent aquatic weed control. One and done.

Product Overview Features and Benefits Product Comparison Labels & SDS Registered States

Product Overview

Stop weeds before they take over.

SonarOne® is designed for proactive, long-lasting control of submersed aquatic weeds. By starting early and treating before nuisance growth takes over, managers can reduce the cycle of chasing weeds after they become visible.

This easy-to-apply pellet formulation delivers an effective upfront dose while helping sustain the desired Sonar concentration over time. That makes SonarOne® a strong fit for routine maintenance programs, precision aquatic plant management, and sites where water movement can make treatment planning more challenging.

Built on years of SePRO research, field experience, and formulation innovation, SonarOne® helps applicators create targeted treatment programs with confidence, flexibility, and operational efficiency.

Season-long control of submersed aquatic weeds
Easy-to-apply pellet formulation
Supports proactive, early-season management
Minimal PPE required

Features and Benefits

Feature	Benefit
Pre emergent aquatic weed control	Helps managers stay ahead of weed growth instead of reacting after nuisance growth appears and reduces the need for retreatments.
Easy to apply pellet	Allows for targeted placement and supports efficient field application.
Whole or partial lake use	Gives applicators flexibility to design programs around the treated area and management objective.
Slow release of Sonar active ingredient over time	Creates a strong fit for sites where water movement and exchange make maintaining concentration more challenging.

Product Comparison

Product	Best Fit	Key Difference
SonarOne®	All-around performance from spot or partial treatments to whole waterbody management.	Combines an upfront dose of Sonar with an extended-release profile for all around balance.
Sonar® H4C	Spot treatment and rapid water exchange scenarios where coverage is important.	Nearly half the amount of Sonar per pellet and half the size of the other pellets, H4C provides 4X the coverage
Sonar® PR	Prevent dilution Sonar in high water movement	These Precision-Release pellets provide intermediate release profile between Sonar SRP and SonarOne
Sonar® Q	Sites where the ease of a pellet application is preferred with the concentration level of a liquid Sonar	The Quickest release profile of all Sonar pellets
Sonar® SRP	Prevent dilution of Sonar in rapid water movement	These Slow-Release Pellets provide the slowest release profile of all Sonar Pellets

Labels & SDS

SonarOne Label (441KB)

Brake On SDS (253KB)

Spanish - SonarOne Label (125KB)

Registered States

Important: Product availability varies by state. Before purchasing, please verify that the product you wish to order is registered for use in your state by checking the “Registered States”. Some states have additional restrictions or prohibitions on certain aquatic herbicides and algaecides. It is a violation of federal law to use any pesticide in a manner inconsistent with its labeling. Customers are responsible for ensuring compliance with all applicable federal, state, and local regulations.

View Registered States