Name: Number 9 Magnesium Anode Bag
SKU: 4496
Availability: InStock

Description

Number 9 Magnesium Anode Bag for Sale – Protecting Your Below Ground Propane Tank

When you install a below ground propane tank, you expect it to last for decades. But without the right protection, underground steel tanks face constant exposure to moisture, minerals, and soil conditions that can lead to corrosion. The best solution is a magnesium anode bag—a small but powerful component that protects your investment.

At PropaneTanksandContainers.com, we proudly offer the Number 9 Magnesium Anode Bag for sale, a trusted choice for propane professionals and homeowners alike. If you want to buy a #9 magnesium anode bag, we’re here to deliver not just a product, but long-term peace of mind.

Why Choose a Number 9 Magnesium Anode Bag?

A propane tank buried underground is constantly in contact with soil and groundwater. These natural elements create an electrochemical reaction that attacks the steel walls of the tank. Over time, this can cause corrosion and reduce the safety and lifespan of your propane system.

The Number 9 magnesium anode bag is designed to stop that process. It acts as a sacrificial metal, attracting corrosion to itself instead of the tank. By slowly deteriorating, the anode preserves the propane tank and ensures it continues working safely for years to come.

Without an anode bag, corrosion can take hold quickly, especially in damp or mineral-rich soils. With a Number 9 magnesium anode, your propane tank has the best defense against this invisible but dangerous problem.

Size and Specifications of the Number 9 Magnesium Anode Bag

Every #9 magnesium anode bag for sale is manufactured to meet strict standards for underground propane tank protection.

Specifications:

Model: Number 9 Magnesium Anode Bag
Core Material: High-purity magnesium (minimum 99.5% pure)
Weight: Approx. 9 lbs of active magnesium
Dimensions: About 3” diameter x 20” length
Backfill: Cotton cloth bag filled with a special low-resistivity mix (gypsum, bentonite, sodium sulfate)
Wire Lead: Pre-attached 10–12 ft copper wire with insulation for connection to the tank
Application: Below ground steel propane tanks, underground vessels, or other buried fuel storage tanks

The combination of magnesium, wire connection, and chemical backfill ensures the anode remains active and continues working reliably for many years after installation.

How the Number 9 Magnesium Anode Bag Works

The Number 9 magnesium anode works by redirecting corrosion away from the steel tank walls. Since magnesium is more reactive than steel, it naturally becomes the target of corrosion when connected to the propane tank. This process, known as cathodic protection, is the industry standard for extending the life of underground tanks.

Once installed, the backfill keeps the anode moist and maintains good electrical conductivity with the surrounding soil. From the moment it is buried, the anode begins working to preserve the tank. Over time, the anode itself will slowly corrode, but this is exactly what it’s meant to do—protect your propane tank by sacrificing itself.

Applications of the #9 Magnesium Anode Bag

The Number 9 magnesium anode bag is commonly used in:

Small to medium below ground propane tanks (120-gallon, 250-gallon, and some 500-gallon tanks, depending on soil conditions).
Residential propane systems, where tanks are buried near homes.
Farm and agricultural propane tanks, where underground placement is common.
Commercial applications requiring long-term corrosion protection.

If you’re installing or maintaining a propane tank underground, you need an anode bag. The #9 size is ideal for tanks that don’t require the larger #17 or #32 options but still demand reliable protection.

How Long Does a #9 Magnesium Anode Last?

On average, a Number 9 magnesium anode bag lasts 10–15 years, though soil composition plays a big role. In rocky or highly conductive soils, anodes may corrode more quickly, while in milder conditions they may last longer.

Routine inspection by a propane professional is the best way to ensure your tank remains protected. If the anode has been consumed, it should be replaced immediately to maintain corrosion protection.

Installation of the Number 9 Magnesium Anode Bag

For maximum protection, the anode should be professionally installed during the placement of a below ground propane tank. The process typically involves:

Positioning the anode in the soil alongside the tank.
Connecting the pre-attached copper wire securely to the tank surface.
Ensuring proper burial depth to keep the anode in continuous contact with soil moisture.

Once installed, the #9 magnesium anode bag begins its job of protecting the tank immediately.

Why Buy from PropaneTanksandContainers.com?

When searching for a Number 9 magnesium anode bag for sale, trust matters. At PropaneTanksandContainers.com, we provide not only quality products but also confidence in every purchase.

Here’s what makes us the preferred choice:

Trusted supplier of propane tanks and accessories
High-purity magnesium anodes built to last
Nationwide shipping for fast, reliable delivery
Industry expertise to help you choose the right size anode for your tank
Commitment to safety and quality in every product we sell

Whether you are a homeowner, a propane professional, or a contractor, we make it easy to buy #9 magnesium anode bags online with confidence.

Frequently Asked Questions

How do I know if I need a Number 9 or Number 17 anode bag?
The #9 is typically used for smaller tanks (120–250 gallons). Larger tanks (500–1000 gallons) often require a #17 or multiple anodes.

Can I install an anode bag myself?
Professional installation is recommended. A certified propane installer ensures proper placement and electrical connection.

How do I know when my anode needs replacing?
Your propane provider can perform a cathodic protection test to measure its effectiveness. If the anode has been consumed, replacement is necessary.

Why magnesium instead of other metals?
Magnesium is more effective than zinc or aluminum in most soil conditions, making it the standard choice for buried propane tanks.

Final Thoughts – Buy Your Number 9 Magnesium Anode Bag Today

A below ground propane tank is an investment that deserves the best protection. With the Number 9 magnesium anode bag, you ensure that your tank remains safe from corrosion, extending its life and protecting your property.

At PropaneTanksandContainers.com, we make it simple to buy a #9 magnesium anode bag for sale with complete confidence. Our products are built to the highest standards, trusted by homeowners and professionals across the country.

Don’t wait until corrosion becomes a costly problem. Buy your Number 9 Magnesium Anode Bag today from PropaneTanksandContainers.com and secure the future of your propane storage system.