CMP Manual Air Relief Assembly Compatible with Pentair 273550

$78.52

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Part # 4600-3550

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Part # 4600-3550

Manufacturer Code 273550

Dimensions 3.5" L x 6.25" W x 3.25" D

Alternate Part #'s 14-110-1154, 25357-273-550, 273550, PAC-051-1958, 14-110-1600, PEN273550

Product Description

Replacement Air Relief Assembly manufactured by CMP for select Pentair® Filters. Replaces Pentair® Part Number 273550

Disclaimer:

All manufacturers’ names, brand names, trademarks, images, symbols, descriptions, and part numbers are used herein for reference purposes only.

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?     Asked on 7/23/2021by Anthony Costa

Will this part replace a PAC-FAB Nautilus NS Stainless Steel D.E. Filter part? I am assuming the diameter of the hole on top is standard on these?
 Reply

A  Answered on 7/23/2021 by InyoPools Product Specialist Craig C.

Hello Tony.  The Air Relief Assembly for the Pentair Pac Fab Nautilus NS Stainless Steel DE Filter is part number 261003.    Air Relief Manual (261003)   According to the manufacturer, Pentair, the Air Relief Assembly for the Pentair Pac Fab Nautilus NS SS DE Filter is NOT identical to the Nautilus Plus NSP Stainless Steel DE Filter.  The Air Relief Assembly for the NSP Series is 273550.   Attached please find an exploded parts diagram for the Pac fab Nautilus Stainless Steel NS DE Filter.   Pac Fab Nautilus Stainless D.E.
 Reply


?     Asked on 7/14/2021by Andrew Quady

Does this replace Pentair 273564 clear ? I am replacing the second 273564 because the clear plastic seems to develop leaks, likely due to sun exposure. This one, in for a few years now has a crack where water comes out when it is under pressure and air goes in when not. Is there an automatic air release version which you could recommend? I have a TR 140 C filter.
 Reply

A  Answered on 7/14/2021 by InyoPools Product Specialist Stephen B.

Thank you for Contacting Inyo Pools, Yes that will replace your clear air relief 
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?     Asked on 8/2/2019by jess lindsey

how do you replace the 373550 PACFAB manual air relief valve
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A  Answered on 8/2/2019 by InyoPools Product Specialist Lennox H.

Hi, Jess. You will have to turn the pump off, release the air, remove the lid from the lower body, undo the air relief assembly lock nut. 
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?     Asked on 6/21/2019by Jimmy White

I want to replace the preasur rellief valve on my nautils De filter, if i order the the assembly does it come with washers ,spacers and nut needed to install it. thanks
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A  Answered on 9/19/2019 by InyoPools Product Specialist Hector F.

This air relief assembly comes with everything needed to install it.  
 Reply


?     Asked on 5/26/2019by DeWayne

My air relief valve leaks air and water. I don’t know the year of my filter because it was here when I bought the house. Looking at the attached photos will this work on my filter? Also, are there other parts I should replace like gaskets an or o-rings?

 Reply

A  Answered on 5/26/2019 by InyoPools Product Specialist Patrick P.

Hi Dwayne, Thank you for the photos they are quite helpful. This 4600-3550 Air Air Relief Assembly is the correct Air Relief Assembly for your Purex Triton FNS Filter shown in the photos.
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?     Asked on 1/18/2018by Brian

Can we buy just the black tee, 273550, without the pressure gauge, etc. And can you confirm that it is black, not clear? Thanks, Brian.
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A  Answered on 1/18/2018 by InyoPools Product Specialist Lennox H.

Hi, Brian. The Air Relief body is not sold separately, only as a kit with the gauge. This Air Relief Assembly - 273550 is black. 
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?     Asked on 7/23/2016by Inyo Visitor

I have a pac-fab (aka pentair) fns filter pre 1993. Can I retro fit the newer manual air relief valve to the top? Meaning I would have to drill it to the larger size
 Reply

A  Answered on 7/27/2016 by InyoPools Product Specialist Lennox H.

Hi, Unfortunately, there is not a way to retrofit this if your Lid does not already have the opening for this air relief assembly. If you can send us photos of your air relief assembly we can locate the correct one for your unit.
 Reply


?     Asked on 6/8/2015by Rick Pivetz

My PAC FAB Nautilus filter, 20 years old, is dripping from the outlet of the top of the pressure relief valve. I need a replacement. All I see available are 'Manual Relief Valves' p/n 273550. They do not show a top air relief, only a manual thumb screw bleed port. Every day when the timer turns the pump on, air vents out all by itself, the stops when the filter is charged with water. I can't see how that can happen with the manual valve. What is the p/n and where can I buy the auto relief valve?
 Reply

A  Answered on 6/16/2015 by InyoPools Product Specialist Lennox H.

Rick Pivetz, Automatic Pressure Relief Valves are generally used for commercial application. Someone may have installed it on that filter but that's not something that we sell.
 Reply


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