Compatible with Pentair
51030000
Diffuser for 18-Inch, 20-Inch and 22-Inch Sand Filters, Replacement for Pentair
Our part number
If the number stamped on your failed part differs, send it over — we will confirm the match against our fitment records.
OEM numbers listed for fitment identification only.
Specifications
| Compatible brand | Pentair |
|---|---|
| Category | Valves & Parts |
| Material | Reinforced thermoplastic |
| Lead time | 15–25 days after order confirmation |
- MOQ 50 pcs · samples from 1
- Private label available
- Ships from our factory
Request wholesale quote
One request covers the whole list — no need to send them one by one.
Tiered pricing available above 1,000 pcs · OEM packaging available
Product overview
The Diffuser for 18-Inch, 20-Inch and 22-Inch Sand Filters, Replacement for Pentair is an aftermarket diffuser built to replace the original component in Pentair valve assemblies. In service it converts the velocity leaving the impeller into pressure and directs flow into the discharge. This is a consumable in practice: the sealing lip and locating tabs wear, letting water recirculate inside the pump instead of moving downstream. Ours is molded in reinforced thermoplastic.
Fits these systems
American Products 5 & 8 Position Top Mount Valves 1-1/2” Models 501151, 501181, 501183
Not sure it fits? Send us a photo of your part and we'll confirm. Send a photo
Often sourced together
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Sourcing questions
What equipment does 51030000 fit?
It fits 501151, 501181 and 501183. Those are equipment models, not part numbers — order against 51030000 itself.
Is 51030000 a genuine Pentair part?
No. POOLPOINT manufactures compatible aftermarket replacement parts. We are not affiliated with, sponsored by or endorsed by Pentair; the brand name and OEM numbers are used to identify fitment only.
What is the minimum order quantity for 51030000?
MOQ is 50 pcs per part, and mixed cartons are welcome to reach the order minimum. Samples are a separate case — we supply single pieces so you can confirm fitment before committing to a production run.
What material is 51030000 made from?
51030000 is produced in reinforced thermoplastic, dimensionally checked against an OEM sample before tooling is signed off.
51030000
Diffuser for 18-Inch, 20-Inch and 22-Inch Sand Filters, Replacement for Pentair