?     Asked on 5/26/2016by john

i just want to make sure this is the right filter. I have a model number 500 Hayward filter system
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A  Answered on 5/26/2016 by InyoPools Product Specialist Alan M.

hello John, The Hayward CX 500 Generic Cartridge - NFC1240 is the correct replacement filter cartridge for the Hayward C-500 filter cartridge.
 Reply


?     Asked on 6/3/2016by Bonnie Day

I am looking for a filter for a Hayward micro star cleaner model #SP1540CLSNP. I can't find the model # on the filter itself. It is for a pool filter system. Thank you for your time.
 Reply

A  Answered on 6/8/2016 by InyoPools Product Specialist Alan M.

The model number you provided matches a Hayward PowerFlo LX pump. The model number does not reference a filter. In order to assist you better, I would need the model of the filter, or you can view the Hayward Micro Star Clear Parts diagram to determine which filter would fit your filter.
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?     Asked on 7/16/2016by Tomas

Had a new filter cartridge and used it about 2 weeks. The pressure gauge started at about 12 when first installed, when it got to about 22 I cleaned the cartridge because I noticed my waterfall was coming out weak. After that first cleaning, now the pressure goes to around 23 almost immediately after it is cleaned and the waterfall is weak. The cartridge is not dirty, it looks brand new, but repeated the process several times with the same result. Any idea why this is happening?
 Reply

A  Answered on 7/21/2016 by InyoPools Product Specialist Lennox H.

Hi Tomas, You may have to soak the cartridge in a Filter Cleaner solution to remove any build up oils that could be in the filter.
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?     Asked on 5/30/2017by Joe

My existing Hayward filter is identified as C-59 OE. It measures as follows: 7" outside diameter, 3" inside diameter and 19 1/4 - 3/8 for the length. Just want to confirm that the CX 500 is the correct replacement filter. Thanks
 Reply

A  Answered on 6/8/2017 by InyoPools Product Specialist Lennox H.

Hi, Joe. The C-59 OE replacement is p/n CX590RE. If you have the Hayward Star Clear C500 Filter this cartridge will fit, however, if you have the Hayward C7000 model which requires 8 cartridges you would p/n CX590RE. The cartridge dimensions are the same but the CX500 element is 50 sq. ft and the CX590RE are 87.5 sq. ft.
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?     Asked on 4/27/2018by Sam

Hi What is the micron rating of this filter? Are there other micron rating filters available?
 Reply

A  Answered on 4/30/2018 by InyoPools Product Specialist Alex V.

Sam, This cartridge can remove particles as low as 10 microns in size. Most cartridges will have the same specs. 
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?     Asked on 7/10/2018by ANDREA

Does the size of the plastic cylinder thingy inside the cartridge determine the size of the cartridge?
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A  Answered on 7/10/2018 by InyoPools Product Specialist Lennox H.

Hi, Andrea. The size of the cartridge is determined by the square footage of the media and cartridge dimensions. 
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?     Asked on 6/27/2020by Ida

Without opening the filter or there any clues when cartridge is damaged or needs replacement.?
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A  Answered on 10/23/2020 by InyoPools Product Specialist Hector F.

Hi Ida, there isn't really a full-proof way to determine if a cartridge is bad or damaged without actually inspecting it however, here is a guide that we put together that should assist called "5 Signs You Need to Replace Your Filter Cartridge"
 Reply