Track orders, manage your details, and sign in without a password.
FREE SHIPPING
Add your items to cart, then choose split payment in the cart summary. You can divide the order across two or more payment methods before checkout.
You have 15 days to finish the split-payment checkout. Credit card repayment terms stay between you and your card issuer.
High-performance commercial expansion tank designed to maintain stable pressure in heating and cooling systems. Built with premium SS316 stainless steel construction and a replaceable EPDM bladder, this expansion tank helps protect system components, improve efficiency, and extend equipment lifespan in demanding commercial applications.
The APOLLO Commercial Expansion Tank helps regulate pressure changes caused by thermal expansion within closed-loop systems. By maintaining balanced pressure levels, it reduces stress on pumps, valves, and connected equipment while improving overall system reliability and operational efficiency.
The Apollo heat pump system is very efficient, quiet, and easy to install. It stands out for its clear design, well-organized components, and advanced features like a touchscreen and remote monitoring through an app. It also allows precise temperature control and includes an electric backup for very cold conditions. Overall, it's a reliable and practical system.
Heats my home nicely and economically. The cold weather does not seem to affect the pump. Overall I'm very happy with the system. The techs have been very helpful whenever I have had questions regarding installation, etc.
Since installing the Apollo heat pump, our energy bills have plummeted. It pulls heat right out of the air outside, even when it's freezing, and uses a fraction of the electricity our old system did. It's incredibly efficient
I was skeptical about a heat pump in our cold climate, but the Apollo proved me wrong. It consistently delivers strong, comfortable heat to our entire home, even during the deepest winter freezes. It's a truly robust system
Upgrading to the Apollo air-to-water heat pump was the best decision for our home. It integrated perfectly with our existing radiant floor heating. It runs quietly outside and provides perfectly even, comfortable heat inside
You can tell just by looking at the Apollo unit that it's built to last. It handles the elements outside without a problem and operates surprisingly quietly. It gives us total peace of mind knowing we have such a dependable system
Maximizing Efficiency with Apollo Heat Pump
Economical performance that isn't affected by low temperatures.
Reliable Heating in Cold Weather
Economical performance that isn't affected by low temperatures.
Incredible Energy Savings
Slashing utility bills with high-efficiency air-to-water technology
Reliable Heat, No Matter the Weather
Powerful performance that stands up to freezing temperatures
The Ultimate Home Heating Upgrade
Seamlessly integrating with existing radiant or hydronic systems
Built to Weather Any Storm
Heavy-duty construction for years of reliable, quiet operation
APOLLO Commercial Expansion Tank
Absorbs excess pressure to protect system components and maintain stability.
Constructed with stainless steel 316 for durability and corrosion resistance.
Designed with a replaceable bladder for extended service life and maintenance.
Standard connections allow quick and efficient installation in various systems.
Suitable for a wide range of heating and cooling system configurations.
High-quality materials and robust construction ensure reliable performance in demanding conditions.
Helps maintain consistent pressure levels within the system, reducing stress on connected equipment.
Built with SS316 stainless steel to provide durability and resistance to corrosion in demanding conditions.
Includes a replaceable EPDM bladder, allowing maintenance without replacing the entire unit.
Standard connection sizing allows for straightforward installation across different heating and cooling systems.
Specifications for the APOLLO Commercial Expansion Tank.
| Tank Type | Bladder expansion tank |
|---|---|
| Body Material | Stainless steel 316 |
| Bladder Material | EPDM (replaceable) |
| Application | Heating and cooling hydronic systems |
| Connection | Standard NPT connections |
| Function | Pressure absorption and system stabilization |
| Installation | Inline — see product description for sizing guidance |
| Warranty | Contact us for warranty details |
Use a family-specific bottom-tabs section later if this product needs comparison tables, grouped specs, or product-handle logic.

Stay Cool This Summer – 20% OFF + Free Shipping