By Pentair Pool Products



Model # 4600-0018

Manufacturer Code 170018

Dimensions 21" L x 21" W x 41.25" D

Alternate Part #'s 170018, 14-110-1558, PAC-051-9946, PEN170018

Product Description

Tank Bottom Assembly 60 sqft FNS Plus - 170018


?     Asked on 4/26/2015by Rainier Mendoza

My existing DE Filter is listed as follows: P/N 190029 Rev. D, Ser. #: 08 09 00 01, Pentair pool products, Model # C. I need only the bottom tank to be replaced, would this be the correct item?

A  Answered on 4/27/2015 by InyoPools Product Specialist Patrick P.

Hi Rainier, Based of this information I beleive you have the FNS Plus 60 Filter, can you double check your label to see if this is correct. If so then this would be the correct bottom tank.

?     Asked on 4/6/2017by Inyo Visitor

My Pool Filter is now 16 years old leaking from the bottom. I wanted to confirm that this is the correct replacement part. The label states Purex Triton FNS Plus and it is the 60 square feet. I assume it is correct, and is it a virtual drop in replacement by unscrewing the input and output lines and just dropping the new unit in place, putting the cartridges back in and putting on the old top?

A  Answered on 4/6/2017 by InyoPools Product Specialist Alex V.

Hello, This is the correct tank bottom assembly for the FNS Plus 60. Please keep in mind that the newer bottom may or may not line up exactly to your 16 year old top due to the way filters contract and expand.

?     Asked on 2/8/2019by JD

My P/N is 18009 it is a FLT FNS PLUS 60 will this base interchange with my unit?

A  Answered on 2/8/2019 by InyoPools Product Specialist Lennox H.

Hi, JD. Yes, this is the is the correct Bottom Assembly for the FNS Plus 60 Filter model # 180009

?     Asked on 3/11/2019by Inyo Visitor

Is this a complete assembly bottom with drain plug , attachment fittings etc?

A  Answered on 3/12/2019 by InyoPools Product Specialist Hector F.

Yes, this filter bottom comes with the drain plug and bulkhead fittings. No actual plumbing is included. 

?     Asked on 7/16/2019by Inyo Visitor

Hello, In need of a new bottom tank for my Pentair FNS Plus 60, P/N 190029 REV. D serial # 0809000102 model #k...will this bottom tank be compatible with mine?

A  Answered on 7/17/2019 by Industry Professional

Yes, This is the correct base for the FNS PLUS 60.


Est. Repair Time

1 to 2 hrs

Tools Needed

Pliers, Socket Set, Wrench Set, Adjustable Wrench

Old tank split all the way down

Written on 9/10/2021 by Guest

Ordered new tank and replaced it.

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