Trapezoid Tank O-ring, Generic - O-420

$14.99

IN STOCK

Part # 4600-5008

By Aladdin

  4.2 Average  

Details

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Part # 4600-5008

Manufacturer Code O-420

Dimensions 19-1/8" ID, 3/8"

Alternate Part #'s 195008, O420, PAC0512964

Product Description

Trapezoid Tank O-ring, Generic - O-420

Compatible with the following filter models:

Dimensions:

  • ID: 19-1/8"
  • Cross: 3/8"
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?     Asked on 5/24/2019 by George

Should the o-ring fit nicely around the filter or is there going to be extra o-ring hanging? Seems like it's too big. Thank you.
 Reply

A  Answered on 5/24/2019 by InyoPools Product Specialist Lennox H.

Hi, George. Yes, the o-ring should fit snug around the tank. 
 Reply

  • Commented on 5/25/2019 by Product Owner

    Thank you. You folks are the best. I've never seen customer service this good. Honestly.
     Reply


?     Asked on 3/27/2019 by James M Ward

will this fit a nautilus FNS 24 filter
 Reply

A  Answered on 3/27/2019 by InyoPools Product Specialist Lennox H.

Hi, James. Yes, this Tank O-Ring - O-420 will fit the Pentair Nautilus FNS D.E. Filter.
 Reply


?     Asked on 6/27/2018 by

Will this fit a Nautilus FNS 36 filter?
 Reply

A  Answered on 6/27/2018 by InyoPools Product Specialist Kevin G.

Hello, yes, this part will fit your Nautilus FNS system.  
 Reply


?     Asked on 5/8/2018 by Fred

Will this fit a PAC-FAB FNS36 DE filter from 1992?
 Reply

A  Answered on 5/8/2018 by InyoPools Product Specialist Hector F.

Yes, this is would be the correct o-ring for that model filter. 
 Reply


?     Asked on 4/18/2018 by

The trapezoid O ring we are looking for should be around 30" (not the 19" you recommend). We have a SEA-HORSE filter Model #FSH300
 Reply

A  Answered on 4/20/2018 by InyoPools Product Specialist Hector F.

After double checking catalogs per the manufacturer, this is indeed listed as the correct o-ring for that model filter. You can always touch base directly with Pentair who is the new owner of at 1-800-831-7133 to triple check. 
 Reply


?     Asked on 1/15/2018 by Mike B

I have a Nautilus FNS 48. I am tryin g to replace the O-ring (trapezoid shaped) that goes between the top and bottom halves of the tank under the clamp. How do I get the O-ring to stay in place to put the tank together? This tank doesn't have a lip to keep it in place.....
 Reply

A  Answered on 1/15/2018 by InyoPools Product Specialist Lennox H.

Hi, Mike. The o-ring must be lubricated and aid of the tank retaining ring the o-ring will be held in place. 
 Reply


?     Asked on 9/1/2017 by The full dimensions

What are the dimensions of specs of this ring/seal? also why not just have them posted with the item? Shape:? ID:? OD:? Ring Inside thickness:? Ring Outside thickness:?
 Reply

A  Answered on 9/15/2017 by InyoPools Product Specialist Andy O.

Hello- The dimensions we have are listed in two placed on this page. Under dimensions in the product description that states "DIMENSIONS 19" X 5/16" as well as in the picture that is labeled "size".
 Reply


?     Asked on 7/19/2017 by Alain

Hi, I need to replace the ring on a Nautilus FNS 48 filter installed in 2004. The documentation provided in 2004 mentions for this item: "19-5008 Seal-Trapezoid-18" DIA". Do you think that your item O-Ring, Tank (O-420) dimension 19"x5/16" could fit with my filter ? Thank you.
 Reply

A  Answered on 7/20/2017 by InyoPools Product Specialist Lennox H.

Hi, Alain. This Tank O-ring - O-420 is the correct replacement o-ring for the Nautilus FNS filter.
 Reply


?     Asked on 7/1/2016 by

is this the o ring rot a Pentair FNS Plus 48 filter ?
 Reply

A  Answered on 7/5/2016 by InyoPools Product Specialist Lennox H.

Hi, The Tank O-Ring (071439) is the correct o-ring for the Pentair FNS Plus 48 filter.
 Reply


?     Asked on 10/15/2014 by Guest

Could you please tell me the shape of this o-ring? is it round or trapezoid?
 Reply

A  Answered on 10/15/2014 by InyoPools Product Specialist Patrick P.

This is the lid tank o ring so it is in the the shape of a circle and rounded.
 Reply


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Difficulty

Est. Repair Time

Less than 1 hr

Tools Needed

Adjustable Wrench

Old DE Filter was Leaking from This Gasket

Written on 3/7/2019 by Guest

I had been putting off this repair for a while, expecting it would be more difficult than it was. I drained the filter and lines, disassembled the stainless steel clamp around the center of the filter and removed the top.

After the top was off there is a steel ring on the inside that this gasket sits on. I removed the old dry gasket, slid this one onto the interior ring and reassembled. The leak was gone with the first try! I wish I had done this sooner!

Were these instructions helpful? 
 

Difficulty

Est. Repair Time

Less than 1 hr

Tools Needed

Screwdriver, Pliers, Socket Set

Pool Service Company Failed Us

Written on 2/7/2019 by Guest

The pool company was supposed to clean the DE filtering system via backwashing it, and then once a season remove the grids, do a full wash, and put in new DE.

After the pool turned green and they failed to do a good cleaning job, we took over the maintenance and the first thing was to open the DE filter. We found it packed full of fine dirt particles to the point that there was a full 2.5 to 3" of silt on each grid; thus we had to do a full cleaning.

When the O-ring was installed it leaked in two places. It did not appear to be worn, and we did a full cleaning of the matching surfaces (ring and lips of both the top and bottom of the tank) and new silicon grease used.

It still leaked and a new O-ring (o-420) was ordered and installed. The leaks are gone, the pressure is back to 22 PSI, and the pool water is again crystal clear.

The one problem that we had was getting the clamping ring tight enough so we could put the washers, spring, and bolt back on. The tip is to not use the washers or the spring, only the bolt to tighten the clamps, then remove the bolt and install the washers, spring and bolt.

You may have to use pliers or another device to hold the clamp in place until you can get the washers, spring, and bolt on as the clamp will have a tendency to try to loosen when you first remove the bolt.

Be sure to let the air out of the tank and to drain the tank before attempting any of the DE tank disassemblies.

Were these instructions helpful? 
 

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