Yes—these tanks and barrels are designed to store rainwater or emergency water safely. This guide compares five popular options to help homeowners, gardeners, campers, and preparedness planners choose the right container for their needs. Best for garden irrigation, emergency water supply, or off‑grid use, each pick prioritizes durability, safety, and ease of use.
| Product | Capacity | Best For | Key Benefit |
|---|---|---|---|
| RTS Home Accents 50-Gallon ECO Rain Barrel | 50 gallons | Home gardeners, small yards | Made from 100% recycled plastic; UV resistant |
| HOANK 55-Gallon Water Storage Barrel | 55 gallons | Bulk storage, garages, workshops | BPA-free, tight head design, versatile fittings |
| 55 Gallon Stackable Emergency Water Storage Tank | 55 gallons | Emergency preparedness | Stackable, food-grade, long-term storage |
| Igloo 5 Gallon Portable Cooler | 5 gallons | On-the-go dispensing | Recessed spigot, reinforced handles |
| WaterPrepared 55 Gallon Tank | 55 gallons | Camping and travel storage | UV-proof, safe for long-term storage |
RTS Home Accents 50-Gallon ECO Rain Barrel

The RTS Home Accents 50-Gallon ECO Rain Barrel is a compact solution for rainwater collection in smaller yards. It uses 100% recycled plastic and adds UV resistance for outdoor durability. Its built-in overflow valve supports overflow management and the option to connect multiple barrels for expanded storage. This makes it a strong pick for homeowners who want a straightforward harvest system that blends with garden setups.
Best for: small to mid-size garden setups, homeowners seeking an eco-friendly recycled-material option.
Why selected: Combines simplicity, sustainability, and expandability, making it easy to grow a rainwater harvesting system over time.
- Capacity: 50 gallons for garden irrigation and yard care
- Durable construction: UV-resistant, made from recycled plastic
- Overflow valve: Manage excess water and link multiple barrels
Caution: As a plastic unit, ensure proper placement to avoid accidental tipping on uneven ground and to protect from direct impact.
HOANK 55-Gallon Water Storage Barrel

The HOANK 55-Gallon Water Storage Barrel offers a high-capacity option with a BPA-free design and a tight head configuration for secure containment. Its dual 2-inch fittings provide flexibility for pumping, draining, or refilling, making it suitable for garages, workshops, or industrial storage needs. The design supports bulk liquid or dry goods and is well-suited for those who may need reliable long-term storage for non-potable uses or large-volume water transfer.
Best for: users needing a durable, high-capacity container with flexible fittings for various transfer needs.
Why selected: The combination of BPA-free material, secure head design, and adaptable fittings makes it versatile for different storage tasks.
- Capacity: 55 gallons for large volume storage
- BPA-free material ensures safer storage of various liquids
- Dual fittings (2-inch NPT and 2-inch Buttress) for flexible connections
Caution: This is a larger unit; ensure proper handling and secure placement to prevent tipping or accidental damage in windy areas.
55 Gallon Stackable Emergency Water Storage Tank

This stackable, 55-gallon tank is designed for long-term home preparedness. It emphasizes space-saving design while providing a robust container made from rotationally molded polyethylene, suitable for safe potable water storage when properly treated and managed. It is ideal for basements, garages, or sheds where space efficiency matters.
Best for: households prioritizing multi-tank stacking to maximize storage in limited spaces.
Why selected: Stackability and durable construction help households plan for extended scenarios without consuming extra floor space.
- Capacity: 55 gallons for extended emergency supply
- Space-saving design suitable for tight spaces
- HDPE construction supports long-term storage
Caution: Ensure lid integrity and proper sealing if used for potable water to prevent contamination risks over time.
Igloo 5 Gallon Portable Sports Cooler

The Igloo 5-gallon cooler is a compact option for on-demand water distribution. Its recessed spigot and reinforced handles improve dispensing reliability, while a keeper cord keeps the lid secured for cleanliness during transport. This cooler is best for individuals who need portable, easy-drink access on-site during camping, events, or fieldwork.
Best for: on-the-go water needs at outdoor events, camps, or job sites.
Why selected: Portability and a leak-resistant design make it the right choice for temporary or mobile water access.
- Capacity: 5 gallons for portability
- Recessed spigot reduces drips and waste
- Reinforced handles and lid security
Caution: Smaller capacity means more frequent refills for households relying on it as a primary supply.
WaterPrepared 55 Gallon Tank

The WaterPrepared 55 Gallon Tank is designed for camping and travel storage, with safe, UV-protected HDPE material for long-term use. It aims for durable on-the-go liquid storage, ensuring water stays protected from sunlight and environmental exposure. This makes it a practical option for travelers, RV owners, and emergency kits that need reliable capacity without taking up excessive space.
Best for: campers, travelers, and emergency kits needing a stable 55-gallon option with UV protection.
Why selected: Emphasizes portability alongside robust outdoor storage capabilities.
- Capacity: 55 gallons for substantial on‑the‑go storage
- UV-proof design helps minimize bacterial growth and material degradation
- HDPE construction lends durability for field use
Caution: Large containers require secure, level placement to prevent tipping in transit or windy conditions.
Buying Guide: How to Choose the Right Water Storage Tank
What will you store and where?
Consider whether you primarily collect rainwater for gardening, store potable water for emergencies, or need portable water for camping. The best pick depends on capacity, durability, and whether the container is designed for potable use.
Capacity and footprint
Choose capacity based on household size and usage. If space is limited, stackable or compact units optimize storage without sacrificing volume.
Material safety and durability
Look for BPA-free plastics for potable storage and UV resistance for outdoor exposure. HDPE and polyethylene are common durable choices for long-term storage.
Fitting options and ease of use
Consider whether you need integrated overflow, spigots, or multiple fittings for pumps and hoses. Dual fittings improve transfer flexibility.
Mobility and installation
Portable models with wheels or handles are ideal for frequent relocation, while large, stationary barrels suit long-term yard or garage setups.
Maintenance and contamination risk
Regular inspection of lids, seals, and connections helps prevent leaks and contamination. Liner quality matters for potable water in some models.
Placement and environment
Position containers away from direct sun when possible to reduce algae growth and plastic degradation. Ensure level ground to prevent tipping and ease of use.
FAQ
- What size water tank is best for a family of four? A 55-gallon container provides a substantial reserve for emergency use or long-term storage, depending on usage needs.
- Are these tanks safe for drinking water? Some models advertise BPA-free materials and food-grade liners; verify each product’s specifications before using for potable water.
- Can I stack tanks to save space? Yes, stackable designs are available and can maximize storage in tight spaces, provided you follow the manufacturer’s safety guidelines.
- Do I need special valves or fittings? Flexible fittings and compatibility with standard hoses are common; check for included fittings or upgrade options.
- How should I maintain a rain barrel? Regularly inspect lids, overflow valves, and spigots; keep screens clean to prevent debris entry.
- Is a portable cooler suitable for long-term storage? Portable coolers are ideal for on-the-go use but typically have smaller capacities and are not designed for long-term storage.