Unicel 4CH-21 Replacement Spa Filter Cartridge

Unicel  |  SKU: 4CH21
$3899 /ea
Inventory: inventory-level-circle 10 In Stock
Shipping: Free 1-3 Day Shipping

Description

The Unicel 4CH-21 is a replacement filter cartridge designed for spas, featuring a diameter of 4 5/8 inches and a length of 8 inches. Its durable polyester construction enhances filtration efficiency by trapping micro-particles, ensuring clean water. Compatible with a variety of spa models, this filter is essential for maintaining optimal water quality in hot tubs and portable pools.

Technical Specs
Specification Details
Part Number 4CH-21
Compatibility Alcove, Atera Spas, Dream Maker Spas, Pageant Spas, Saratoga Spa, Vita Spas
Substitute Part Numbers Pleatco PTL18P4, Filbur FC-0121, OEM Part #20245-238, PVT 25N
Includes 1 cartridge
Material Polyester
Micron Rating 20
Surface Area 19
Count Per Pack 1
Certifications None
Recommended Replacement Frequency Every 6 months
Part Type Replacement Cartridge
End Cap Diameter (Inner) 1-1/2 inch
Pleat Count 158
Shipping Dimensions 8 x 4-5/8 x 4-5/8 inch
Product Weight 1.63 pound

Features:

  • 19 square feet filtration area
  • Durable polyester material
  • 158 pleats for enhanced filtration
  • Molded cone handle for easy installation
  • 1-1/2" Male Pipe Thread (MPT) bottom connection

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