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Ronstan Series 40 All Purpose Block - Single Upright Lead - RF41171
Ronstan Series 40 All Purpose Block - Single Upright Lead - RF41171
Ronstan Series 40 All Purpose Block - Single Upright Lead - RF41171
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Ronstan Series 40 All Purpose Block - Single Upright Lead - RF41171

Marsoni M251S
Sale price$40.99
Pay 4 payments of $10.25 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Ronstan Series 40 All Purpose Block - Single Upright Lead - RF41171Series 40 All Purpose Block Single Upright Lead Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire. Applications: Typically used for halyards at the mast base. Materials: UV stabilised acetal sheave Grade 316 stainless steel load housing
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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
4.0 ★★★★★
Based on 942 reviews
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Product Reviews
T
Verified Purchase
Thomas Douglas
Phoenix, US
★★★★★ 4
Good
24 Camry, V6. A little bit different then OEM, just had to tweak the filter a tad, not a big deal but just letting you know. I would still get it again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
B
Verified Purchase
Brian
Lexington, US
★★★★★ 5
2023 RAV4 Hybrid
The product is great and is OEM+ in quality. This has to be the easiest cabin air filter I have ever changed. The replacement is super simple. Take off the glove box by pressing in (check for Youtube videos), remove and take the plastic tray out, remove the old filter, and install the new one into the plastic tray, making note to match the direction of the arrows. Reinstall and you are done. Replace once a year.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 9, 2024
D
Verified Purchase
Dave K
Port Orchard, US
★★★★★ 5
The best you can get!
I use Purolator filters exclusively. Top quality filter from a company that specializes in filters.. I use them everywhere a filter is needed. Never a failure and top quality filter media.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2025
A
Verified Purchase
a g
Bozeman, US
★★★★★ 5
Clean air
Perfect fit for my 2023 Toyota highlander hybrid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 30, 2025
E
Verified Purchase
Ellie H.
Natrona Heights, US
★★★★★ 5
works as advertised
works as advertised
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2025

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