Compatible with Unicel
C-3310AM
Hot Tub Filter Cartridge, 8 Sq Ft, 3-7/8 x 7 In., Replacement for Unicel C-3310AM, Pleatco PMA10
Also sold as
Your number not here? Send it to us and we'll confirm the match.
OEM numbers listed for fitment identification only.
Specifications
| Compatible brand | Unicel |
|---|---|
| Category | Hot Tub & Spa Filters |
| 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
C-3310AM is an aftermarket pleated hot tub filter cartridge, 3-7/8 in. in diameter and 7 in. long, with 8 sq ft of filter area. Top: open (2-3/16" ID). Bottom: open (2-3/16" ID). Center opening: 2-3/16 in.
It interchanges with Pleatco PMA10.
Pleatco lists PMA10 as discontinued in its 2025-26 catalog. This cartridge keeps the original 3-7/8 x 7 in. size, so it drops into the same filter housing.
Fitment notes: Master Spas: Manufactured with antimicrobial filter media; used in conjunction with Unicel C-7330 or C-8341 outer cartridge in Eco-Pur filtration systems. Master Spas: Manufactured with antimicrobial filter media; used in conjunction with Unicel C-7330 or C-8341 outer cartridges in Eco-Pur filtration systems.
Before ordering, measure the old cartridge — overall length, outside diameter and both end fittings. Some catalogs quote the length of threaded top-load cartridges with the thread and some without, so a quarter-inch difference between listings is common. We supply spa service companies, dealers and online retailers: MOQ 50 pcs per part, mixed cartons welcome, and single samples to confirm fit before a production order.
Fits these systems
Hot tubs and spas from Master Spas.
Not sure it fits? Send us a photo of your part and we'll confirm. Send a photo
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What OEM numbers does C-3310AM replace?
POOLPOINT C-3310AM is an aftermarket replacement cross-referenced to PMA10. Those numbers identify fitment only — the part is manufactured by POOLPOINT, not by Unicel.
Is C-3310AM a genuine Unicel part?
No. POOLPOINT manufactures compatible aftermarket replacement parts. We are not affiliated with, sponsored by or endorsed by Unicel; the brand name and OEM numbers are used to identify fitment only.
What is the minimum order quantity for C-3310AM?
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.
C-3310AM
Hot Tub Filter Cartridge, 8 Sq Ft, 3-7/8 x 7 In., Replacement for Unicel C-3310AM, Pleatco PMA10