Pentair 274440 is a bulkhead adapter ring designed for compatible Pentair heater assemblies that use a 2-inch bulkhead adapter connection. Pentair parts documentation identifies this SKU specifically as the bulkhead adapter ring, used with the 2-inch bulkhead adapter in applicable heater water manifold assemblies to help secure the connection during service and operation.

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Key Features

• This replacement part is identified by Pentair as a bulkhead adapter ring for compatible heater assemblies.

• The component is used with a 2-inch bulkhead adapter in the heater water manifold section of the parts breakdown.

• Pentair lists this part separately from the bulkhead adapter itself, which helps confirm that it is the retaining ring component rather than the adapter body.

• The ring helps secure the associated bulkhead adapter connection within the designated heater assembly. This is an inference based on Pentair’s naming and placement of the part in the assembly breakdown.

• Pentair documentation shows a quantity requirement of two in applicable assemblies.

• This replacement part is suitable for service work when the original bulkhead adapter ring becomes worn, damaged, or no longer retains the connection properly. This is an inference based on its classification as a replacement assembly component.

• Pentair SKU 274440 appears in MiniMax heater replacement parts documentation for compatible heater models.

• Using the exact replacement part number helps maintain proper fit within the original Pentair heater assembly.

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Product Overview

The Pentair 274440 bulkhead adapter ring is a replacement heater component used in compatible Pentair water manifold and bulkhead adapter assemblies. Pentair’s official heater parts documentation identifies part 274440 as “Adaptor, bulkhead ring” and shows it directly with part 471441, which is listed as the 2-inch bulkhead adapter. In the same breakdown, Pentair lists a quantity of two, confirming that this is a dedicated retaining component within the heater water connection assembly rather than a general-purpose hardware item.

This part is intended for repair and maintenance when the original bulkhead adapter ring is damaged, worn, or no longer serviceable. Because it is tied to the 2-inch bulkhead adapter arrangement in Pentair heater parts documentation, the most accurate retail naming for this SKU is Pentair 274440 Bulkhead Adapter Ring. That wording stays aligned to the official Pentair designation and avoids confusing the part with the separate adapter body or unrelated valve hardware.