Compatible with Astral
721R1820060
Filter O-Ring, 7.5-Inch ID, Replacement for Astral Filters
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 | Astral |
|---|---|
| Category | Filters & Filter 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 o-ring is a compatible replacement for the Astral original, supplied as the Filter O-Ring, 7.5-Inch ID, Replacement for Astral Filters. In service it forms the static seal between two mating components under compression. Replacement is routine: rubber hardens, flattens and cracks with heat, chlorine and UV exposure, and a failed o-ring is the most common source of air leaks and drips. 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
Astral Cantabric Sand Filter Parts Series 3000 Side Mount 24”
Not sure it fits? Send us a photo of your part and we'll confirm. Send a photo
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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.
721R1820060
Filter O-Ring, 7.5-Inch ID, Replacement for Astral Filters