SPX4000T O-Ring for Hayward NorthStar Pump Seal Plate | O-239 Replacement

SPX4000T O-Ring for Hayward NorthStar Pump Seal Plate | O-239 Replacement

Marsoni

M251S

$12.99

Get it in 3 business days with 1 day shipping. Friday, May 29

SPX4000T O-Ring for Hayward NorthStar Pump Seal Plate | O-239 ReplacementThe Aladdin O 239 is an aftermarket replacement for the Hayward SPX4000T seal plate O ring, purpose built for the Hayward NorthStar SP4000 series pump line covering models SP4005(NS) through SP4030(NS). Seated between the motor assembly and the seal plate, this O ring creates the critical moisture barrier that keeps your pump cavity sealed under pressure. With an inside diameter of 9 1 2 inches, it matches factory dimensions precisely, delivering a

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We really like these pull ups and they have worked well for us during potty training. They are easy to pull on and off, which is great for toddlers who are learning to be more independent. They fit well and do a good job containing messes without leaking. I also like that they feel comfortable and not too bulky, so my child can move around easily. Overall, these have been a reliable option for us and something we continue to use during this stage.

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Reviewed in the United States on May 3, 2026

Verified Purchase

ape

Birmingham, US

★★★★★ 5

Preferred by daycare teachers!

Size: 4T-5T, Unit Count: 99

Preferred by daycares because they open and close on the sides and kids can learn to pull on and take on on their own

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Reviewed in the United States on April 9, 2026

Verified Purchase

Michelle E.

Lake Worth, US

★★★★★ 4

Nice

Size: 3T-4T, Unit Count: 112

Good pull ups, it could get a little linty but it fits perfectly on my toddler. It stretches which I love. I do love how I could strap and unstrap the sides of the pull up. The designs on the pull up are cute. It holds a lot of pee and soaks it up very well. It’s comfortable on my toddler and the pee and poop doesn’t leak out of it. It is worth the money.

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Reviewed in the United States on November 18, 2025

Verified Purchase

The Prime Perspective

Charlottesville, US

★★★★★ 5

The Fast & the Curious- Potty Drift

Size: 5T-6T, Unit Count: 60

Who knew toddler potty training required both a PhD in fluid dynamics and Jedi mind tricks? These Pull-Ups prove the science part: leak-proof, absorbent, and surprisingly soft. The toddler-psychology part? That’s a battle of wills. Our little one was a die-hard fan of Huggies diapers—too loyal, in fact. We begged, we bribed, we pleaded: “Please, let’s move on!” Resistance was fierce. So we went stealth mode, sneaking Pull-Ups on at night like parents on a covert mission. Credit to mom—she cracked the code and finally got the kid interested in the toilet. Suddenly, the “potty rush” moments became less of a flood and more of a sprint. Diapers were too slow to peel off; Pull-Ups gave our little sprinter the speed boost they needed. They’re soft, rash-free, and practically leak-proof (unlike that other brand we don’t speak of). Pro tip: size up for easier toddler self-removal. The result? A drier, happier kid, less laundry for us, and the toilet finally earning MVP status. If you’re ready for your toddler to graduate from Diaper University, this is the diploma. Bonus: you’ll save money too.

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Reviewed in the United States on September 3, 2025

Verified Purchase

Michelle Vincent

Omaha, US

★★★★★ 5

Mom of 3 recommend!

Size: 5T-6T, Unit Count: 14

I'm using these again for the 3rd time and they're great as always. My 3rd is still having some issues at night time with bed wetting, and as they get older the bigger the mess, so these truly hold up to a full bladder. And they don't smell by morning like some diaper brands. I'm usually against pull ups, but these are great for up and down ease of use and that added protection when it comes to potty training. I love the bigger size inclusion for larger children which we struggle with for comfort compared to other brands.

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Reviewed in the United States on February 14, 2026