Compatible with Unicel
C-8465
Hot Tub Filter Cartridge, 65 Sq Ft, 8-1/2 x 10-1/2 In., Replacement for Unicel C-8465, Pleatco PWK65, Filbur FC-3960
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-8465 is an aftermarket pleated hot tub filter cartridge, 8-1/2 in. in diameter and 10-1/2 in. long, with 65 sq ft of filter area. Top: open (3" ID). Bottom: open (3" ID). Center opening: 3 in.
It interchanges with Pleatco PWK65 and Filbur FC-3960.
OEM cartridges it replaces: Caldera 76136; Hot Spring 31114, 71827, 71828; Tiger River 31114.
Fitment notes: The original was 45 sq. ft. (162 pleats). This replacement has been upgraded to 65 sq. ft.
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 Caldera, Hot Spring, Tiger River.
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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Fits Pleatco
Hot Tub Filter Cartridge, 42 Sq Ft, 5-3/16 x 12-1/2 In., Replacement for Pleatco PCAL42-F2M
Fits Pleatco
Hot Tub Filter Cartridge, 45 Sq Ft, 8-1/2 x 10-9/16 In., Replacement for Pleatco PWK45N, Filbur FC-3929
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Hot Tub Filter Cartridge, 18 Sq Ft, 6-5/8 x 6-1/4 In., Replacement for Pleatco PBF17Sourcing questions
What OEM numbers does C-8465 replace?
POOLPOINT C-8465 is an aftermarket replacement cross-referenced to 31114, 71827, 71828, 76136, FC-3960, FC-3960-SC, PWK65 and ULTRA-S16. Those numbers identify fitment only — the part is manufactured by POOLPOINT, not by Unicel.
Is C-8465 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-8465?
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-8465
Hot Tub Filter Cartridge, 65 Sq Ft, 8-1/2 x 10-1/2 In., Replacement for Unicel C-8465, Pleatco PWK65, Filbur FC-3960