Pentair Drain Plug O-Ring for Clean & Clear, Predator & FNS Plus Filters | 51005000Z
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- Backordered: contact us for ETA
- SKU:
- 51005000Z
-
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About This Item
The Pentair O-Ring for Drain Plug (51005000Z) is the OEM replacement drain plug O-ring used across a range of Pentair cartridge and D.E. filter systems, as well as select Pentair valve assemblies, with correct fitment governed by the equipment's manufacture date.
IMPORTANT: MANUFACTURE DATE AFFECTS FIT
This O-ring's fitment depends on when your Pentair filter or valve was manufactured — cutoff dates vary by model. Check the Fits Into table below for the date range that applies to your specific equipment before ordering.
IMPORTANT: QUANTITY VARIES BY APPLICATION
This listing is for one (1) O-ring. Most Clean & Clear, Predator, FNS Plus, and EasyClean filter applications use a single O-ring, but 2 in. Push Pull Valve applications require two (2) per valve. Confirm the quantity needed for your equipment before ordering.
IMPORTANT: LUBRICATION REQUIRED — SOLD SEPARATELY
Always lubricate this O-ring with a silicone-based lubricant before installation. We carry the Pentair R172351 Lifeguard Silicone Lubricant — the OEM-matched product for Pentair equipment.
This O-ring seals the drain plug (or valve stem, on Push Pull Valve applications) against the filter tank or valve body, preventing water loss and maintaining pressure during filtration and backwash cycles. A worn, flattened, or cracked O-ring in this location is a common source of drain plug and valve stem leaks.
Specifications
| Pentair Part Number | 51005000Z |
| Part Name | O-Ring for Drain Plug |
| Part Category | O-Rings |
| Quantity Included | 1 (Each) |
Fits Into
| Brand | Equipment Line | Model / Part Number | Notes |
| Pentair (formerly American Products) | Push Pull | 263064 | Push Pull Valve replacement part for American Valves; 2 in. valve stem |
| Pentair | Clean & Clear | CLEAN & CLEAR | Drain Cap O-Ring; Clean & Clear Filter Systems manufactured 2009 and beyond |
| Pentair (formerly American Products) | Push Pull | 50290211 | Push Pull Valve replacement part for American Valves; 2 in. valve stem |
| Pentair | Clean & Clear | CLEAN & CLEAR | Used on filters manufactured after 11/98 |
| Pentair | Clean & Clear / Predator | PREDATOR | Used on filters manufactured after 11/98 |
| Pentair | Clean & Clear / Predator | CLEAN & CLEAR 50 | O-ring, drain cap; used on filters manufactured after 11/98 |
| Pentair | Clean & Clear / Predator | CLEAN & CLEAR 75 | O-ring, drain cap; used on filters manufactured after 11/98 |
| Pentair | Clean & Clear / Predator | CLEAN & CLEAR 100 | O-ring, drain cap; used on filters manufactured after 11/98 |
| Pentair | Clean & Clear / Predator | CLEAN & CLEAR 150 | O-ring, drain cap; used on filters manufactured after 11/98 |
| Pentair | Clean & Clear / Predator | CLEAN & CLEAR 200 | O-ring, drain cap; used on filters manufactured after 11/98 |
| Pentair | Clean & Clear / Predator | PREDATOR 50 | O-ring, drain cap; used on filters manufactured after 11/98 |
| Pentair | Clean & Clear / Predator | PREDATOR 75 | O-ring, drain cap; used on filters manufactured after 11/98 |
| Pentair | Clean & Clear / Predator | PREDATOR 100 | O-ring, drain cap; used on filters manufactured after 11/98 |
| Pentair | Clean & Clear / Predator | PREDATOR 150 | O-ring, drain cap; used on filters manufactured after 11/98 |
| Pentair | Clean & Clear / Predator | PREDATOR 200 | O-ring, drain cap; used on filters manufactured after 11/98 |
| Pentair | FNS Plus | FNS PLUS 24 | Used on filters manufactured before 10/04 |
| Pentair | FNS Plus | FNS PLUS 36 | Used on filters manufactured before 10/04 |
| Pentair | FNS Plus | FNS PLUS 48 | Used on filters manufactured before 10/04 |
| Pentair | FNS Plus | FNS PLUS 60 | Used on filters manufactured before 10/04 |
| Pentair | EasyClean | EC60 | Fits all EasyClean filter systems |
| ...and additional compatible models. Verify your model number with your equipment manual before ordering. | |||
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
Because this O-ring is shared across several Pentair filter families with different production-date cutoffs, keep your old O-ring on hand when ordering — a side-by-side comparison of size and cross-section is the fastest way to confirm you have the right variant. Before reinstalling, coat the O-ring lightly with Pentair R172351 Lifeguard Silicone Lubricant to protect the seal and make future disassembly easier.
