Pentair Bulkhead Bottom | Quad D.E. Filter | 178575Z
- In stock, ready to ship
- Backordered: contact us for ETA
- SKU:
- 178575Z
-
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About This Item
The Pentair Bulkhead Bottom (178575Z) is the OEM replacement bottom bulkhead fitting for the Pentair Quad D.E. Filter series, providing a secure, leak-free connection at the base of the filter tank.
The bulkhead bottom seals the lower tank port on Quad D.E. Filters, maintaining system pressure integrity and preventing water loss at the filter base. A failed or cracked bulkhead fitting at this position compromises filtration performance and can result in system leaks — this OEM part restores the original fit and seal.
Specifications
| Pentair Part Number | 178575Z |
| Part Name | Bulkhead Bottom |
| Part Category | Bulkheads |
| Quantity Included | 1 (Each) |
Fits Into
| Brand | Equipment Line | Model / Part Number | Notes |
| Pentair | Quad D.E. | Quad 60 | Bulkhead bottom |
| Pentair | Quad D.E. | Quad 80 | Bulkhead bottom |
| Pentair | Quad D.E. | Quad 100 | Bulkhead bottom |
Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.
Poolaroo Pro Tip
When replacing the bulkhead bottom, inspect the corresponding O-ring and any sealing washers at the same time. These components compress and degrade over the life of the fitting — replacing the bulkhead without refreshing the seals is a common cause of post-repair leaks. Have all sealing hardware on hand before draining the filter for service.
