Part # 4600-1474

Manufacturer Code 191474

Dimensions 1-3/4" ID, 1/8" Cross Section

Alternate Part #'s 017681, 191474, 28-828-657, 28-828-667, 28-828-679, 28828679, 308-1016, 47-0224-05-R, 47-0256-06-R, 47022405, 50-1100BSS, 51003400, 700-408, 700408, 805-0224B, CP-100-OR, CP100OR, HWP1022 O-RING, HWP1022ORING, O-125, O-2115, SPX1022CZ2, 90-423-5224, PEN191474

Product Description

O-ring, 1-3/4" ID, 1/8" Cross Section, Generic for 191474

Frequently Bought with this O-ring

Magic Lube O-ring Lubricant



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


?     Asked on 9/29/2015by Glenn

My existing Pentair filter FNSP48, purchased in 2013, has a hex head drain plug with a yellow flat washer, Note no cracks in the boss. It always leaks while running. What do I need to fix/repair? Your site shows different type of plug with an O ring type washer. thanks

A  Answered on 10/5/2015 by InyoPools Product Specialist Lennox H.

Hi Glen, Since your unit was manufactured after 5/21/05 the O-ring, 1 3/4in X 2in X 1/8in (4656-09) would be the correct o-ring needed to stop the leak.

?     Asked on 8/21/2019by Bob Bush

My FNSP60 was installed in 2006. My drain plug is also leaking. Need to replace o-ring , but 2 different ones shown. Which one correct for my unit? Thank you!

A  Answered on 8/21/2019 by InyoPools Product Specialist Lennox H.

Hi, Bob. We actually need the manufactured date or a picture of the drain plug you have in order to determine which Drain Plug O-ring is required. 

  • Commented on 8/21/2019 by Product Owner

    See attached pic, didn't see a MFR date at all... Also attaching a pic of what my drain plug looks like


    • Commented on 10/18/2019 by InyoPools Product Specialist Lennox H.

      Bob, You will need P/N 191474 - Drain Plug O-ring. 


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