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.
1-1/2 inch thick Micro Aire duct board (48" x 120") with foil backing for superior insulation in Aqua-Hot and Hydro-Hot heated air duct systems. Th...
View full details1-inch thick Micro Aire duct board (48" x 120") with foil backing for use in Aqua-Hot and Hydro-Hot hydronic heating installations. This rigid fibe...
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Replacement blower wheel fan motor (HDX-162-511) for Aqua-Hot heating systems. Powers the blower fan that circulates warm air through the cabin hea...
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Preformed 3/4-inch 90-degree molded hose for Aqua-Hot and Hydro-Hot hydronic heating systems. Pre-shaped for specific routing applications where a ...
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Preformed 3/4-inch 90-degree molded hose, 18-1/2 inches in length, for Aqua-Hot and Hydro-Hot hydronic heating systems. This pre-shaped elbow hose ...
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Tygothane® unbraided polyurethane tubing, 5/16-inch ID x 7/16-inch OD, sold by the foot from a 100-foot spool. Used in Aqua-Hot and Hydro-Hot syste...
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BR-809 circulation pump, 12 VDC, for Aqua-Hot and Hydro-Hot hydronic heating systems. This new-style pump circulates heated coolant through the sys...
View full detailsModified brass insert fitting for Aqua-Hot and Hydro-Hot hydronic heating systems. This specialty fitting is designed for specific plumbing connect...
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7/8-inch constant tension hose clamp (CTB-24ST) for Aqua-Hot and Hydro-Hot hydronic heating systems. Self-adjusting spring design maintains consist...
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1/2-inch constant tension hose clamp (CTB-12) for Aqua-Hot and Hydro-Hot hydronic heating systems. Unlike standard worm gear clamps, constant tensi...
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Bend support for 5/8-inch polytube used in Aqua-Hot and Hydro-Hot hydronic heating systems. Prevents kinking and maintains proper flow when routing...
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Straight 1/2-inch PEX fitting for Aqua-Hot and Hydro-Hot hydronic heating systems. Creates a secure inline connection between 1/2-inch PEX tubing r...
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Tempering valve repair kit (PLX-4A8-18R) for Aqua-Hot hydronic heating systems. Contains the internal components needed to rebuild and restore prop...
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Air assembly combination valve for Aqua-Hot and Hydro-Hot hydronic heating systems. This multi-function valve combines air venting and pressure rel...
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Adjustable tempering valve with a temperature range of 120°F to 160°F for Aqua-Hot and Hydro-Hot domestic hot water systems. Mixes hot and cold wat...
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Radiator cap with bail handle and tethering chain (PLX-403-000) for Aqua-Hot hydronic heating system expansion tanks. The chain prevents the cap fr...
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Molded 90-degree hose elbow, 3/4-inch x 3/4-inch, 10 inches long, for Aqua-Hot and Hydro-Hot hydronic heating systems. This pre-formed elbow elimin...
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Lined worm gear clamp adjustable from 7/8-inch to 1-1/4 inch for Aqua-Hot and Hydro-Hot hydronic heating systems. The interior lining protects hose...
View full detailsBrass 90-degree elbow fitting with 1/4-inch barb x 1/4-inch male NPT for Aqua-Hot and Hydro-Hot hydronic heating systems. Used for connecting small...
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Pump bracket isolator (PLX-100-837) for Aqua-Hot hydronic heating systems. These rubber isolators mount between the pump bracket and the chassis to...
View full details5/8-inch PEX tubing for Aqua-Hot and Hydro-Hot hydronic heating system plumbing. Used for coolant distribution lines between the heating unit and z...
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5-quart expansion tank assembly (PLE-622-902) for Aqua-Hot hydronic heating systems. The larger capacity accommodates greater coolant volume in sys...
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Clear 5/8-inch tubing, 6-foot length, for Aqua-Hot and Hydro-Hot hydronic heating systems. Used for overflow lines, coolant routing, and sight line...
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Engine pump supply pipe for Aqua-Hot hydronic heating systems. This formed pipe connects the engine coolant supply to the Aqua-Hot unit, enabling e...
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3-zone pump manifold kit for Aqua-Hot hydronic heating systems. Distributes heated coolant to three independent heating zones for customizable clim...
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3-quart overflow bottle with factory decal and 5/8-inch barb fitting for Aqua-Hot hydronic heating systems. Captures and recovers coolant overflow ...
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3-quart expansion tank with integrated internal fluid level sensor (PLE-063-200) for Aqua-Hot hydronic heating systems. Features 5/8-inch barb fitt...
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Small filler neck (TNX-NEC-FLL) for Aqua-Hot hydronic heating system expansion tanks. Provides the fill point for adding coolant to the system. Rep...
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Propane exhaust tip end (SME-400-015) for Aqua-Hot hydronic heating systems equipped with propane burners. Directs exhaust gases safely outside the...
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Cozy plenum assembly for Aqua-Hot hydronic heating systems. The cozy plenum is a compact heat exchanger with integrated fan that mounts in cabinets...
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Winters PFQ Series Stainless Steel 304 Single Scale Liquid Filled Pressure Gauge w/ Brass Internals 0-300psi, 2.5" Dial Display, +/-1.5% Accuracy...
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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...
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Replacement label for the 5 Qt. expansion tank used in Aqua-Hot hydronic heating systems. Restores factory identification markings including fill l...
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Oxygen sensor socket tool (AHPW648442) for servicing Aqua-Hot hydronic heating systems. This specialty socket is designed to remove and install oxy...
View full detailsManifold drain assembly kit for Aqua-Hot and Hydro-Hot hydronic heating systems. Provides a convenient drain point on the manifold for system flush...
View full details2-zone pump manifold pipe assembly for Aqua-Hot hydronic heating systems. This pre-assembled manifold distributes heated coolant to two independent...
View full detailsReplacement brush set for March 809 high-speed circulation pumps used in Aqua-Hot and Hydro-Hot hydronic heating systems. Motor brushes wear over t...
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