?     Asked on 9/14/2012by Guest

What is the micron rating for a Unicel element?
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A  Answered on 9/14/2012 by InyoPools Product Specialist Patrick P.

All Unicel elements & grids have a 20 Micron Rating.
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?     Asked on 12/20/2012by Guest

I need to order replacement grids for my d.e filter but I'm not sure which ones to order. How do I know which one is the right one?
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A  Answered on 12/20/2012 by InyoPools Product Specialist Patrick P.

The easiest way to figure out the correct grid would be to measure the length and width and compare it to the measurements we have listed on the product page.
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?     Asked on 3/29/2015by David

Need replacement Filter elements (DEX3600DA) for my Hayward Pro-Grid vertical DE filter series. Do you have these filters (7 large and 1 smaller)?
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A  Answered on 3/30/2015 by InyoPools Product Specialist Robert M.

Hello David - The correct grid pack is FG1003PACK.
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?     Asked on 6/7/2015by helen

I have an older de3600 filter. Do you have the completely assembled grid and how much would that be
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A  Answered on 6/7/2015 by InyoPools Product Specialist Patrick P.

Hi Helen, Yes we do carry the Complete Assembled DE Grid Assembly For The Hayward DE3600 Filter here.
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?     Asked on 7/1/2015by Inyo Visitor

hello! ?I have a DE-3600 filter and need to replace the grids. are all the grids the same size in this filter?
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A  Answered on 7/1/2015 by InyoPools Product Specialist Hector F.

There is also one partial grid which you can view here or you can purchase the complete grid pack that you can view here.
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?     Asked on 7/24/2015by Don

my grids only has one slot the grid 18 by 11
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A  Answered on 7/24/2015 by InyoPools Product Specialist Lennox H.

Hi Don, The 36 Sq. Ft. Full Grid 18 (7 required) will be the correct size grid.
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?     Asked on 7/27/2015by john

my pool filter is a pentair trto series 4000 model 4036. will this be the right grid?
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A  Answered on 7/27/2015 by InyoPools Product Specialist Hector F.

No, the correct grid is part number 4677-15A in which you would need 8 of.
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?     Asked on 2/20/2016by Inyo Visitor

I have an Triton Nautilus FNS 36 Diatomaeous Earth Filter . What grid model # do I need
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A  Answered on 2/22/2016 by InyoPools Product Specialist Lennox H.

Hi, This will be the correct size filter for your filter model. If you're replacing all of the grids I would recommend the 36 Sq. Ft. Grid Pack (FG1003PACK), it includes the 7 Full & 1 Partial grids.
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?     Asked on 3/15/2016by Cam

I have a nautilus ins36 pac fab and I need to replace the filter grid what do I get ? Thank you
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A  Answered on 3/17/2016 by InyoPools Product Specialist Lennox H.

Hi Cam, If you're purchasing p/n FG1003, you would only get 1 single grid. If want to replace all the grids then you will need to get p/n FG1006PACK.
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?     Asked on 4/17/2016by Jiri

I need to replace all elements in my Pro-Grid Hayward DE 3620 filter. Which part should I order?
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A  Answered on 4/18/2016 by InyoPools Product Specialist Hector F.

You can purchase the complete grid pack being part number FG1003PACK or you can purchase the complete rebuild grid assembly being part number 4810-65.The pack is just the elements and the assembly is ready to place back into the filter body already assembled.
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?     Asked on 6/12/2016by Ed Frick

How do I know what size the fans are that I need replaced on my filter?
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A  Answered on 6/12/2016 by InyoPools Product Specialist Matt S.

Measuring your current grids, would be the quickest and most accurate solution.
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?     Asked on 6/17/2016by David F. Taylor

Re: Hayward DE3620 Pro-Grid Why is it cheaper to buy (7) Full Grid #FG1003 @ $19.99 + (1) Partial Grid #PG1903 @ $14.99 than it is to buy the Complete Grid Cluster #4810-65 @ $322.99? Thank you...
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A  Answered on 6/17/2016 by InyoPools Product Specialist Patrick P.

Hi David, the complete grid cluster includes other items besides the grids like the top manifold, bottom grid locator, retainer rod and stand pipe. These additional parts make the grid cluster more expensive then just purchasing the grids.
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?     Asked on 6/17/2016by Bruce

I have Crystal Clear 2 DE Filter Model# DE-LE-42052 36ft2 72GPM 50 max psi. Which grid will work for this system?
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A  Answered on 6/18/2016 by InyoPools Product Specialist Patrick P.

Hi Bruce, these are the correct replacement DE grids for the Crystal Clear 2 DE Filter Model# DE-LE-42052 by Leslie's.
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?     Asked on 6/21/2016by Pat

I have model# DE-LE-42052 Hayward Crystal Clear II D.E Filter that I need replacement grids for but need help ordering correct size. Information on label is: 36 ft. 2 72GPM 50PSI Top Side 18 16 Can you please help me with this? Thanks, Pat
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A  Answered on 6/26/2016 by InyoPools Product Specialist Alex V.

Pat, If you need to replace all 8 grids, you can find them here: http://www.inyopools.com/Products7/05100012060823.htm?Keywords=fg1003pack
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?     Asked on 7/2/2016by gary

i am looking to replace the grids in my filter they measure 18 inches tall im not including the tab that inserts into the manifold should i be ?
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A  Answered on 7/3/2016 by InyoPools Product Specialist Alex V.

Gary, If the grids are 18: tall, then they would be 36 sq. ft. grids like the FG1003.
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?     Asked on 10/1/2016by gary simmons

I have a Hayward de3620 filter pro grid----Id # is 2111050 205011 5002. I want to make sure I order the positively correct part. I wish to buy the complete nest.. Do you stock it and where can I find same on your site, or should I call. Thanks Gary
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A  Answered on 10/3/2016 by InyoPools Product Specialist Lennox H.

Hi, Gary. The Grid Assy (DEX3600DC) is the complete cluster for the Hayward DE3620 filter.
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?     Asked on 10/3/2016by Bob

Need 8 grids for Purex 30 SF ...DE filter 24" x 7 1/2 " across
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A  Answered on 10/3/2016 by InyoPools Product Specialist Scott W.

I will need to know which model of Purex filter you have to determine whether that is going to be the correct grids for your filter.
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?     Asked on 12/12/2016by Bob

I have a Nautilus NS36 filter that takes FG-1003 filters ( 18 inches tall ). I also need to replace 2 rods ( about 21 1/2" long with nuts). I notice that you can sell the whole assembly. How much both ways. Thanks Bob
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A  Answered on 12/12/2016 by InyoPools Product Specialist Adam Y.

Good afternoon Bob, You can see all the parts available for this filter here.Pac Fab Nautilus Stainless D.E. Parts or the whole assembly Grid Assy., 36sq.ft. - Ns36 - 192325
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?     Asked on 3/28/2017by Inyo Visitor

I have an Aquatic FNS-36 and need to replace some of the elements, can you tell me which one I should purchase?
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A  Answered on 3/29/2017 by InyoPools Product Specialist Lennox H.

Hi, This 36 Sq. Ft. Full Grid - FG1003 is the correct size grid for the Aquatic Systems FNS-36 filter. If you need to replace all of the grids only I would recommend p/n FG1003PACK or the complete grid assembly p/n 59023500.
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?     Asked on 5/20/2017by EUGENE GARCIA

will this fit a purex triton 4000 ?
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A  Answered on 5/21/2017 by InyoPools Product Specialist Lennox H.

Hi, Eugene. This FG1003 grid will not fit the Purex 4000 Series Molded D.E. Filter. The grids are all listed on the Purex 4000 Series Molded D.E. parts page.
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?     Asked on 5/24/2017by Inyo Visitor

My filter is a Hayward DE3600. I need to replace two grids. My pool guy says a need 1 (one) full 36" grid and one (1) partial 36" grid for the DE3600?
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A  Answered on 5/24/2017 by InyoPools Product Specialist Hector F.

Those grids will be listed at keys number 15 and 16 on the filter parts diagram here.
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?     Asked on 3/23/2019by Rick

I have a hayward D E 3620 filter what is correct filter and how many are in it.
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A  Answered on 3/23/2019 by InyoPools Product Specialist Lennox H.

Hi, Rick. The Hayward DE3620 has a total of 8 grids. You can purchase the 36 Sq. Ft. Grid Pack 18" - FG1003PACK which includes the 7 Full and 1 Partial. 
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?     Asked on 5/11/2019by Inyo Visitor

Is the $24.99 price include all 7 grids, or does each of the 7 grids have a price of $24.99?
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A  Answered on 5/13/2019 by InyoPools Product Specialist Michelle B.

Hello, This will only be for one grid. You will need 7 of these.
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?     Asked on 6/21/2019by David Evans

I have a de filter attached to a pentair challenger cf series pump. The label says nautilus and serial # 0987-1104. All other information on the label has faded away. Can you tell me what model I have?

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A  Answered on 6/24/2019 by InyoPools Product Specialist Matt S.

Because your tank appears to be stainless steel, there are two options: Pentair Nautilus Plus Stainless D.E. NSP36, 48, 60 & 72 or Pac Fab Nautilus Stainless D.E. If you cannot tell which model you have by the parts diagrams, then call Pentair with the serial number and they may be able to identify it.
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?     Asked on 6/21/2019by David Evans

I have a de filter attached to a pentair challenger cf series pump. The label says nautilus and serial # 0987-1104. All other information on the label has faded away. Can you tell me what model I have? I also sent an email yesterday to your company and haven't received any response.
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A  Answered on 7/18/2019 by InyoPools Product Specialist Hector F.

The Nautilus series does have a few different models and we cannot use serial numbers for that series however Pentair can. Their phone number is 1-800-831-7133. 
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?     Asked on 7/2/2019by Dawn

I have a Nautilus NS-36 DE filter, (filter area 36 sq ft), that I need to replace the grids in. The full size grids measure approx.18.5 in length and are approx.19.5 wide. I need to replace the grids only, which ones should I be ordering? (the measurements don't seem to match up with the ones available for ordering) I also get some DE reentering the pool from the returns which is creating a film on the bottom of the pool. What can I do to prevent this? Thank you!
 Reply

A  Answered on 9/18/2019 by InyoPools Product Specialist Hector F.

Yes these actually would be the correct replacement grids or you can view the parts by clicking here to view key 10 for another option. You may also need to replace the manifold, the spider gasket in the multiport if you have one, or the o ring on key 12. We recommend inspecting those as well as for those can cause d.e. to go back into the pool.
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?     Asked on 2/19/2020by john Nivens

are replacement filters equal to oem parts
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A  Answered on 2/20/2020 by InyoPools Product Specialist Lennox H.

Hi, John. These are as good as the OEM option. 
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?     Asked on 6/1/2020by Bill

I have a Hayward DE 360S Micro * Clear Filter. What is the item number for replacement grids and does it come with instructions??
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A  Answered on 6/1/2020 by InyoPools Product Specialist Hector F.

The replacement grids are keys 15, 16, or the last item listed on this pars list for the complete grid assembly. Please click here to view the Hayward Micro Clear filter parts. 
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?     Asked on 9/21/2022by robert Handler

i need one hayward pro grid 36sqft grid. is your grid like a hard plastic or doe it have like a soft cloth shell
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A  Answered on 10/1/2022 by InyoPools Product Specialist Hector F.

Hello Robert, these grids have a plastic skeleton and a cloth mesh type material around the skeleton. 
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