• Bottom View:


    Open Hole: 1 1/2”

  • Top View:


    molded cone handle

Unicel 4CH-21


Filter Specs :

(Filter Measuring Tips)
Filbur# FC-0121
Pleatco # PTL18P-4
Unicel # 4CH-21
Width 4 5/8"
Length 8"
Top molded cone handle
Bottom Open Hole: 1 1/2”
OEM # 20245-238

Availability: In stock.

Add Items to Cart

Product Description

This replacement filter cartridge comes with a technical specification of Filbur# FC-0121, Pleatco # PTL18P-4, Unicel # 4CH-21, and OEM # 20245-238. This product is a high performance filter cartridge. This state of the art Vita Spas, Unicel, DM Industries, Vita Spas, Alcove, Saratoga Spas, Pageant Spa, Atera Spas (Four Seasons Home Re filter is of superior quality as per industry standards. This filter comes with a molded cone handle at the top and Open Hole of 1 1/2” at the bottom. It is 8" in length and 4 5/8" wide. It efficiently provides you dust, sand and worm free clean and clear water solution for your pools and spas. The best in the industry this product matches all your water purifying needs and offers quality with cleanliness and hygiene par excellence

Write a Review for Unicel: 4CH-21

How do you rate this product?*
  1 star 2 stars 3 stars 4 stars 5 stars


Unicel, Pleatco & OEM part numbers are listed for customer reference only.

website security