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Ignition Control – NBK-20840 (Special Order) - Total Hearth
Ignition Control – NBK-20840 (Special Order) - Total Hearth
Pentair

Ignition Control | NBK-20840 - PENTAIR

In stock
SKU: SO-20840
(0)
$229.99
Before You Order
Special Order Notice
This item is a Special Order product and requires additional processing before shipment. Please allow an additional 2–3 business days for order processing before shipping.
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PENTAIR Ignition Control 

Direct Replacement for:

PENTAIR 35-663903-111
PENTAIR 35663903111
PENTAIR 47-110-1782
PENTAIR 472150
PENTAIR 6273-0211
PENTAIR PEN472150

The NBK-20840 Ignition Control is a direct replacement control module engineered for precision ignition and reliable operation in pool and spa heaters. This versatile module is equivalent to multiple OEM part numbers, including Pentair 472150, 6273-0211, 35-663903-111, 35663903111, 47-110-1782, and PEN472150—making it a reliable solution across a wide range of heating systems.

Key Features

• OEM-equivalent performance – Matches the specifications and operation of original Pentair and Fenwal ignition controls
• Reliable ignition management – Ensures consistent system startups and safe burner operation
• Durable electronic design – Engineered to withstand demanding pool and spa environments
• Easy retrofit – Compatible with a broad range of systems for hassle-free replacement

Specifications

• SKU: 20840
• Brand: NBK
• Category: Miscellaneous / Pool Parts
• Type: Ignition Control Module
• Equivalent To:
 - Pentair 472150
 - 6273-0211
 - Fenwal 35-663903-111
 - 35663903111
 - 47-110-1782
 - PEN472150

Pairs well with: Replacement Electrical Parts

Why Replace Your Ignition Control?

A failing ignition control can cause intermittent heating, ignition lockouts, or complete system failure. Upgrading to this NBK replacement restores safe, reliable control—ensuring your heater runs efficiently and without interruption.