Unicel C-4950 replacement filter cartridge, 50 square feet, for hot tubs and spasUnicel C-4950 Filter Cartridge, 50 Sq Ft for Hot Tubs and Spas In stock$4099
Unicel C-4950 replacement filter cartridge, 50 square feet, for hot tubs and spas
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Unicel C-4950 Filter Cartridge, 50 Sq Ft for Hot Tubs and Spas

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$4099
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Quick overview

  • 50 square feet of media A large pleated surface for a cartridge this size, so it holds more before flow drops off.
  • 212 pleats The pleat count is what turns a small can into fifty square feet of filtering area.
  • Measured for a straight swap 4-15/16 inches in diameter and 13-5/16 inches long, so you can check it against the cartridge you pulled out.
  • In-line spa design Built for the in-line filter housings used on hot tubs and spas rather than a large pool tank.
  • Used across several housings Listed for Jacuzzi (Carvin), Pentair and Waterway filter housings.
  • Rinse and reuse Cartridges clean up with a hose and cleaner, so replacement is only needed once the media is spent.
Full description and specifications ↓

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Product details

The Unicel C-4950 is a replacement cartridge for the in-line filters used on hot tubs and spas. It carries 50 square feet of filtration area in a body 4-15/16 inches in outside diameter and 13-5/16 inches long.

Why the pleat count matters

The cartridge gets its 50 square feet from 212 pleats folded into that small diameter. More surface area means the same amount of dirt is spread thinner, so the filter runs longer between cleanings and the pump works against less resistance while it does.

Before you order

Unicel lists this cartridge against Jacuzzi (Carvin), Pentair and Waterway filters. Cartridges of a similar length are not interchangeable if the diameter or the end caps differ, so pull the old one and measure it against the dimensions above.

Specifications
Brand Unicel
Manufacturer part number C-4950
UPC 678285140539
Type Replacement filter cartridge
Filter area 50 sq ft
Pleats 212
Outside diameter 4-15/16"
Length 13-5/16"
Filter manufacturer Jacuzzi (Carvin), Pentair, Waterway
Application Hot tubs and spas
Shipping weight 1.7 lb
Ships Parcel

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Customer reviews

Questions and answers

What people ask about this product, answered by our pool techs.

What size is the C-4950?
It measures 4-15/16 inches in outside diameter and 13-5/16 inches in length, with 50 square feet of filter area.
Which brands of filter does it go in?
It is listed for Jacuzzi (Carvin), Pentair and Waterway filter housings. Measure your old cartridge before ordering to confirm.
Is this for a pool or a spa?
It is an in-line cartridge sized for hot tubs and spas.
How often should it be replaced?
Clean the cartridge on a regular schedule and replace it once the pleats stay dirty after cleaning, or once the media has gone soft or torn.
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