Gemini Dual Containment® Double Wall Blue Square Storage Tanks | NSF 61 Certified Chemical Tanks with Pump Shelf & Secondary Containment | 5–70 Gallon

Gemini Dual Containment® Double Wall Blue Square Storage Tanks (NSF Certified)

Gemini Dual Containment® Double Wall Blue Square Storage Tanks by Peabody Engineering are engineered for the secure and compliant storage of water treatment chemicals and other hazardous or sensitive liquids. These heavy-duty, space-efficient square tanks feature a "tank-in-a-tank" dual containment design, offering built-in secondary containment and maximum protection against leaks, spills, and environmental exposure. Perfect for chemical dosing, mixing, and storage applications in municipal, industrial, agricultural, and commercial facilities.

Each Gemini tank is NSF/ANSI/CAN 61 Certified, meets or exceeds EPA 49 CFR secondary containment regulations, and is ideal for both indoor and outdoor installations. Designed with operator convenience in mind, these tanks include a molded pump mounting shelf, 8” vented twist lid, overflow dikes, and threaded bulkhead fittings to support your complete chemical feed system.

Upgrade your system confidently with Gemini—the industry standard for safe, compliant chemical storage.

Smart Storage for Demanding Chemical Applications

• Dual Containment Protection: Innovative tank-in-a-tank design with 120% containment capacity ensures compliance and protects the environment.

• NSF 61 Certified: Safe for storing potable water and approved for use in water treatment systems.

• Heavy-Duty Materials: Constructed from high-density polyethylene with a 2.0 specific gravity rating for storing a wide range of dense chemical solutions.

• Pump Mounting Platform: Molded-in top shelf designed for mounting chemical metering pumps directly to the tank (compatible with most brands).

• Overflow Dikes & Vented Lid: Prevent overflow and allow safe venting of vapors during use.

• Recessed “Mousehole” Access Port: Simplifies bottom outlet installation for flooded suction or full drainage applications.

• Maintenance-Free Performance: UV-stabilized for outdoor use and built to withstand harsh chemical environments.

• Space-Saving Square Design: Gemini² models offer 22% more capacity than round tanks of the same footprint.

Explore More System Components

• Chemical Handling Equipment Collection – View compatible tanks, pumps, mixers, and accessories.

• Water Treatment Chemicals – Browse our selection of NSF-grade and industrial chemicals for water systems.

• Chemical Metering Pumps – Shop pumps mountable directly to the Gemini tank’s built-in pump shelf.

Why Choose Gemini for Chemical Storage?

Gemini Dual Containment® Tanks offer peace of mind through exceptional engineering, EPA compliance, and NSF certification. These tanks are trusted by professionals in water treatment, agriculture, and industrial applications for their unmatched durability, chemical resistance, and space-saving design. With built-in secondary containment, easy pump integration, and no need for additional containment basins, Gemini sets the standard for safe chemical storage.

Upgrade your chemical storage system today with Gemini—the smart, compliant, and long-lasting solution for your liquid handling needs.