Compatible with Pentair
51018900
Sight Glass Gasket for H-Series Valves, 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 | EPDM rubber |
| 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
This gasket is a compatible replacement for the Pentair original, supplied as the Sight Glass Gasket for H-Series Valves, Replacement for Pentair. In service it seals the joint between two housing faces and keeps the circuit pressure-tight. Replacement is routine: the material compresses permanently and loses its rebound, so the joint begins to weep under pressure. Ours is molded in EPDM rubber and dimensionally checked against an OEM sample before tooling is signed off.
Send us the number stamped on your failed component and we will confirm the match against our fitment records before you order. Supplied factory-direct with a 50 pcs minimum, mixed cartons welcome, and OEM or private-label packaging available on request.
Fits these systems
Pentair American Products 2" H & M Series Multiport Valve Parts
Not sure it fits? Send us a photo of your part and we'll confirm. Send a photo
Often sourced together
More in this category
View all
Fits Jandy
2/3-Port Pool Valve Rebuild Kit with Diverter, Cover and Handle
Sourcing questions
What is your MOQ?
50 pcs per SKU for stocked items. Mixed cartons are welcome — you can combine SKUs to reach the order minimum. Samples are handled separately: we can supply a single piece so you can verify fitment before ordering in bulk.
Can I order samples before a bulk order?
Yes. We ship samples by express before bulk production so you can verify fitment on real equipment.
What are your lead times?
Typically 15–25 days after order confirmation, depending on quantity and whether custom packaging is involved.
Do you offer OEM and private-label packaging?
Yes — custom cartons and labels, your logo molded or printed on parts, and custom molds for volume programs.
51018900
Sight Glass Gasket for H-Series Valves, Replacement for Pentair