Rheem AP21666 125V 20A Inline Gfci Click to zoom

Rheem AP21666 125V 20A Inline Gfci

MPN AP21666

In stockHeat Pump Water Heater Parts

Overview

Rheem AP21666 — 125V 20A Inline Gfci.

Supplies water heater units with power Plugs into wall outlets 125V 20A Inline GFCI protection

  • Manufacturer part number: AP21666
  • Brand: Rheem
  • Category: Heat Pump Water Heater Parts
  • Sold for HVAC / plumbing service replacement — verify OEM fitment before ordering

Frequently asked questions

What is AP21666?

Rheem AP21666 is sold as 125V 20A INLINE GFCI. Confirm fitment against your equipment model and the OEM part number before ordering.

Is this an OEM part number?

The manufacturer part number is AP21666. Our internal warehouse SKU uses a TL- prefix for inventory tracking.

How should I verify compatibility?

Match the full OEM part number on the old component or your unit's parts list. When in doubt, provide the equipment model number to your counter person.

Do you include installation instructions?

Follow the OEM service literature for your equipment. Disconnect power and recover refrigerant or isolate water as required before replacing parts.

What is your return policy on parts?

Unopened, unused parts in original packaging may be returned per store policy. Electrical and special-order items may be final sale — check the product page notes.

Is a GTIN/UPC available?

When a manufacturer GTIN is known it is listed in the barcode field. Some HVAC OEM parts ship without a retail UPC; brand and MPN still identify the product.