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Forespar MF 839 Vented Loop - 1-1/4
Forespar MF 839 Vented Loop - 1-1/4
Forespar MF 839 Vented Loop - 1-1/4
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Forespar MF 839 Vented Loop - 1-1/4" - 903011

Marsoni M251S
Sale price$34.99
Pay 4 payments of $8.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Forespar MF 839 Vented Loop - 1-1/4" - 903011MF 839 Vented Loop 1 1 4" Installing one of our vented loops will ensure that fluids will not siphon from tank to tank. Vented loops are commonly used in the marine toilet system and engine cooling system. The simple valve system incorporated in the top of the loop allows air to enter the line when not in use, yet effectively seals as water or other fluid passes through. Molded in Marelon, neither vent nor loop will corrode. The duckbill one way valve
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  • 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 1734 reviews
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A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Good
Good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 8, 2025
C
Verified Purchase
Customer
Port Orchard, US
★★★★★ 4
Does not work on Porsche 2015 S-E Hybrid
DOESNT WORK on Porsche 2015 S E-Hybrid
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
J
Verified Purchase
Jules
Charlottesville, US
★★★★★ 5
Great
Perfect for my 2008 Cayenne S
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2025
B
Verified Purchase
Brian and Susy
Port Orchard, US
★★★★★ 1
Made in China? Really famous German brand Bosch?
Made in China? Really famous German brand Bosch? I would not have bought this filter for my Porsche Macan if I'd known it was made in China and would have bought a German-made Mann or Mahle filter like I have in the past.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
C
Verified Purchase
CONSUMER I
Bozeman, US
★★★★★ 5
Worked well.
Worked well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2024

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