Hot Tub Filter Cartridge, 50 Sq Ft, 4-5/8 x 14-3/4 In., Replacement for Unicel 4CH-50, Pleatco PTL50P4, Filbur FC-0151

Compatible with Unicel

4CH-50

Hot Tub Filter Cartridge, 50 Sq Ft, 4-5/8 x 14-3/4 In., Replacement for Unicel 4CH-50, Pleatco PTL50P4, Filbur FC-0151

Also sold as

1561-05FC-0151PTL50P4

Your number not here? Send it to us and we'll confirm the match.

OEM numbers listed for fitment identification only.

Specifications

Compatible brandUnicel
CategoryHot Tub & Spa Filters
Lead time15–25 days after order confirmation
  • MOQ 50 pcs · samples from 1
  • Private label available
  • Ships from our factory

Request wholesale quote

or

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

4CH-50 is an aftermarket pleated hot tub filter cartridge, 4-5/8 in. in diameter and 14-3/4 in. long, with 50 sq ft of filter area. Top: molded cone handle. Bottom: 1-1/2" male thread/MPT.

It interchanges with Pleatco PTL50P4 and Filbur FC-0151.

OEM cartridges it replaces: Dimension One 1561-05.

Fitment notes: Replaces any cartridge that has an MPT fitting or a 1.9" id w/ disposable adapter.

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 Addison Spas, Advanced Spa Design, American Classic Spas, Aqua Tech Spas, Dimension One, Dynasty Spas, Florida Whirlpool, Nemco, OpuSpas.

Not sure it fits? Send us a photo of your part and we'll confirm. Send a photo

Sourcing questions

What OEM numbers does 4CH-50 replace?

POOLPOINT 4CH-50 is an aftermarket replacement cross-referenced to 1561-05, FC-0151 and PTL50P4. Those numbers identify fitment only — the part is manufactured by POOLPOINT, not by Unicel.

Is 4CH-50 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 4CH-50?

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.

Factory directWe manufacture ourselves. No trading company in between.
Built to lastEngineering materials matched to OEM specs or better.
Cross-referencedEvery part mapped to the OEM numbers it replaces.
Bulk & container supplyMOQ from 50 pcs. Mixed cartons welcome.
3D fitment modelsVerify threads and ports before you commit.

4CH-50

Hot Tub Filter Cartridge, 50 Sq Ft, 4-5/8 x 14-3/4 In., Replacement for Unicel 4CH-50, Pleatco PTL50P4, Filbur FC-0151

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