Pentair Sta-Rite System:3 Replacement Cartridge (FC-ECO3-300)

Pentair Sta-Rite System:3 Replacement Cartridge (FC-ECO3-300)

Marsoni

M251S

$271.10

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

Pentair Sta-Rite System:3 Replacement Cartridge (FC-ECO3-300)Replacement filter cartridge for Pentair Sta Rite System: 3 swimming pool filter systems. Compatible Filter Systems Pentair Sta Rite System: 3 (S7M120, S7M400, S8M150, S8M500) Specifications Type Filter Cartridge MPN FC ECO3 300 Brand Compatibility Pentair Sta Rite Cross References 22315304789, 22315304796, 25021 0200S, 25022 0201S, 446429, 602927, 602929, APCCECO3300, FC ECO3 301, FC ECO3 302, FC ECO3 303, STA250210200S, STA250220201S

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I normally wear size 13&half to 14 men's, and these fit me ok. They sit just below the ankle. They can get a little tight for me so you should look out for that if you are on the thicker side. But they work as advertised and help moisturize your feet. I recommend wearing them if you're going to just be hanging around home for a bit in one spot as they can be a little slippery to walk in if you go fast. Would not recommend going up and down stairs.

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Reviewed in the United States on August 28, 2025

Verified Purchase

Brian

Louisville, US

★★★★★ 5

Good socks

Size: 1 pair black L

Good socks

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Reviewed in the United States on May 6, 2026

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Amazon Customer

Port Orchard, US

★★★★★ 3

REALLY unsafe to walk around in these

Size: 2 pairs black L

They do what they are expected to do, but should only be used if you are stationary. The gel base makes for very unstable footing if walking around

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Reviewed in the United States on May 27, 2026

Verified Purchase

Suz

Natrona Heights, US

★★★★★ 5

These work

Size: 2 pairs black L

My husband loves these they help his very dry feet. As others have stated they are extremely difficult to walk in so have to be careful but they do work nicely.

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Reviewed in the United States on March 12, 2026

Verified Purchase

Massapequa, US

★★★★★ 1

Potential Fall Risk

Size: 2 pairs black L

While these socks do indeed help soften rough skin on your feet, there is a risk of falling while wearing them. Although they have treads on the bottom, which would indicate they’re safe to wear with nothing else, when you put moisturizer on and then wear them your foot can slip inside the sock . This causes you to lose your balance and fall, which happened to me. I’ve thrown them out.

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Reviewed in the United States on October 24, 2024