Small Filler Neck - TNX-NEC-FLL
by Aqua-Hot
Save 20%
Original price
$76.85
Original price
$76.85
-
Original price
$76.85
Original price
$76.85
Current price
$61.48
$61.48
-
$61.48
Current price
$61.48
The Small Filler Neck is a direct replacement part used in Aqua-Hot & Hydro-Hot hydronic heating systems to connect the expansion tank to the fill cap or service port. This component allows easy refilling and inspection of antifreeze fluid levels in the system.
Important Information
- Connects to Expansion Tank – Acts as the upper filler port for topping off antifreeze or inspecting fluid condition.
- Durable Construction – Built to handle temperature fluctuations and chemical exposure from glycol-based antifreeze.
- Genuine OEM Replacement – Designed for perfect compatibility and optimal performance in Aqua-Hot & Hydro-Hot heating systems.
WARNING: CRITICAL COMPONENT – IMPROPER REPLACEMENT CAN LEAD TO SYSTEM MELTDOWN!
Compatible Models
Aqua-Hot
| AHE-100-00S | AHE-100-01S | AHE-100-02S | AHE-100-03S | AHE-100-04S |
| AHE-101-000 | AHE-120-03X | AHE-120-04X | AHE-130-03X | AHE-130-04X |
| AHE-200-02S | AHE-450-DE1 | AHE-450-DM1 | AHE-600-D01 | AHE-600-D02 |
| AHE-675-D01 | AHE-675-D02 | AHE-920-431 | 431/11 | 431/11B |
| 431/12 |
Hydro-Hot
| HHE-200-01E | HHE-200-02E | HHE-200-03E | HHE-200-04E | HHE-200-05E |
| HHE-500-01M | HHE-500-02M | HHE-500-03M | HHE-500-04M | HHE-500-05M |
| HHE-200-06E | HHE-200-07E | HHE-200-08E | HHE-200-09E | 2001-E |
| HHE-500-06M | HHE-500-07M | HHE-500-08M | HHE-500-09M | HHE-102-0EE |