Filters

Aqua-Hot Parts | OEM Replacement Components & Repair Kits

Aqua-Hot Parts | OEM Replacement Components & Repair Kits

Genuine Aqua-Hot Parts for Reliable Hydronic Heating

Keep your Aqua-Hot system performing like new with our full selection of OEM Aqua-Hot parts and accessories. Each component is engineered to fit perfectly, ensuring consistent heat, efficient operation, and long-term reliability.

Whether you’re performing annual maintenance, troubleshooting a heating issue, or rebuilding your entire system, you’ll find every part you need — from filters and nozzles to pumps, thermostats, sensors, and circuit boards.

✅ Genuine OEM Aqua-Hot replacement parts
🔧 Compatible with Aqua-Hot & Hydro-Hot systems
🔥 Maintain peak heating and hot water performance
🧰 Ideal for RVs, coaches, and hydronic service centers

Use the filters to quickly locate the right part for your specific model. Each product page includes part numbers, compatibility notes, and installation details to help you complete your repair confidently.

For annual maintenance, explore our Aqua-Hot Service Kits and Cost-Saving Bundles — curated for convenience and long-term system protection.

3-quart expansion tank with a clear label on the side in white and red colors
Sold out
$10.00

3 Qt. Expansion Tank Label

Replacement label for the 3 Qt. expansion tank used in Aqua-Hot and Hydro-Hot hydronic heating systems. Restores factory identification markings in...

View full details
$10.00
Sold out
5-quart expansion tank assembly with a durable design and connection fittings.
Save $3.11
$103.75
$100.64

5 Qt. Expansion Tank Assembly PLE-622-902

5-quart expansion tank assembly (PLE-622-902) for Aqua-Hot hydronic heating systems. The larger capacity accommodates greater coolant volume in sys...

View full details
$103.75
$100.64
Save $3.11
3 quart expansion tank with a sensor kit, featuring a cylindrical shape and mounting brackets.
$115.48

3 Qt. Expansion Tank w/ Sensor Kit MSE-200-OFB

3-quart expansion tank with sensor kit (MSE-200-OFB) for Aqua-Hot and Hydro-Hot hydronic heating systems. Provides coolant expansion capacity and f...

View full details
$115.48
White label for a 5-quart expansion tank with clear black text.
$8.50

5 Qt. Expansion Tank Label

Replacement label for the 5 Qt. expansion tank used in Aqua-Hot hydronic heating systems. Restores factory identification markings including fill l...

View full details
$8.50

You recently viewed

Clear recently viewed