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GROCO 1" Bronze High Speed Thru-Hull Fitting w/Nut - HSTH-1000-W

Marsoni M251S
Sale price$26.99
Pay 4 payments of $6.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
GROCO 1" Bronze High Speed Thru-Hull Fitting w/Nut - HSTH-1000-WGROCO 1" Bronze High Speed Thru Hull Fitting w Nut HSTH 1000 W 1" Bronze High Speed Thru Hull Fitting w Nut Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM NPT combination thread C83600 Bronze
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Your GROCO 1" Bronze High Speed Thru-Hull Fitting w/Nut - HSTH-1000-W orders ship within 1-2 business days.

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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 922 reviews
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H
Verified Purchase
HB
Louisville, US
★★★★★ 5
Good quality, but likely holds water.
Good quality and was easy to install on base with two bolt lengths provided. I modifed by drilling a small hole through the base of the pole mount so that water can drain out. I have previously ended up with a rotten wooden umbrella pole because the pole mount held water!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
D
Verified Purchase
Don B.
Birmingham, US
★★★★★ 5
This is the one to buy
It was the perfect replacement heavy duty constructed and able to take different size umbrellas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 24, 2025
R
Verified Purchase
Robi
Birmingham, US
★★★★★ 4
Good fit, but loosens easily
Fit perfect but the wind blowing makes the whole umbrella move the part enough to loosen it so continually having to tighten, which is a pain since you have to do so from the bottom of the base.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2025
E
Verified Purchase
Ed
Lake Worth, US
★★★★★ 5
works for me!
Seems much higher quality than the original, install is simple, and I like that there are 2 screws for hold the umbrella tight and straight
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2025
J
Verified Purchase
JeepGuy
Birmingham, US
★★★★★ 5
Great replacement mount.
Great replacement that comes with 2 different inserts. Easy to replace our rusted out one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026

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