Unicel 4CH-949 50 square foot replacement filter cartridgeUnicel Cartridge Filter, 50 Sq Ft, 4CH-949 In stock$4999
Unicel 4CH-949 50 square foot replacement filter cartridge
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Unicel Cartridge Filter, 50 Sq Ft, 4CH-949

Ask a questionMPN 4CH-949
$4999
In stock
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Quick overview

  • 50 square feet The rated media area, which is what sets how long the cartridge runs between cleanings.
  • Measure before you order 4-15/16 inch outside diameter and 13-1/2 inch length are the numbers that have to match.
  • For Rising Dragon filters Listed against filters manufactured by Rising Dragon.
  • Unicel built Made by Unicel rather than assembled from generic media.
  • Drop in replacement It goes into the housing the old cartridge came out of, no modifications.
  • Keep a spare Rotating two cartridges lets one dry fully between cleanings, which is easier on the media.
Full description and specifications ↓

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Product details

The Unicel 4CH-949 is a 50 square foot replacement filter cartridge measuring 4-15/16 inch across the outside and 13-1/2 inch in length. It is listed for filters manufactured by Rising Dragon.

Getting the size right

Cartridges are ordered by measurement, not by the name on the filter housing. Outside diameter, length and rated square footage are the three numbers to check against the cartridge you are taking out. A cartridge that is close but not exact will let water bypass the media, and unfiltered water going back to the pool defeats the point.

What the rating buys you

Fifty square feet is the pleated surface area available to catch dirt. The larger the area, the more the cartridge holds before pressure climbs and it needs cleaning, so a correctly sized cartridge runs longer between service stops.

Getting the most from it

Clean on pressure rather than on the calendar, rinse the pleats out rather than blasting them, and keep a second cartridge on hand so one can dry completely while the other is in service. Replace the cartridge when the pleats stop coming clean or the media goes limp.

Specifications
Brand Unicel
Manufacturer part number 4CH-949
UPC 678285240147
Type Replacement filter cartridge
Square footage 50
Outside diameter 4-15/16"
Length 13-1/2"
Filter manufacturer Rising Dragon
Shipping weight 1.85 lb
Ships Parcel

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Customer reviews

Questions and answers

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

How do I confirm this is my cartridge?
Measure the old one. This is 4-15/16 inch across the outside and 13-1/2 inch long, with 50 square feet of media. All three should match.
What does 50 sq ft mean in practice?
It is the surface area of the pleated media. More area means more dirt held before pressure rises and the cartridge needs cleaning.
What filters is it for?
It is listed for filters manufactured by Rising Dragon.
How often should it be replaced?
Clean it on the schedule your filter pressure calls for, and replace it once the pleats no longer come clean or the media has gone soft and no longer holds its shape.
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