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![Ronstan Series 40 All Purpose Block - Triple - Swivel Head [RF41300]](https://cdn.shopify.com/s/files/1/0405/8454/4408/products/70600XL.jpg?v=1591347365 "Ronstan Series 40 All Purpose Block - Triple - Swivel Head [RF41300]")
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Description
Ronstan Series 40 All Purpose Block - Triple - Swivel Head [RF41300]Series 40 All Purpose Block Triple Swivel Head Features: Exceptionally high working loads Low maintenance, long service life Self lubricating sheave Slotted pin shackle eliminates fouled lines Two way head post Spare parts RF41010 Replacement Becket Pin, RF150 Shackle All purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and
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Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 2463 reviews
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Product Reviews
★★★★★ 5
High quality supplement
Size: 180 Count (Pack of 1)
My doctor recommended a high quality calcium capsule because I am at risk for osteoporosis. The magnesium enhances calcium absorption and helps with my insomnia. I take one capsule daily along with a diet of mostly whole foods. I am 50 years old and have taken this supplement for several years now and my annual lab tests for calcium are always in the desired range.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 23, 2021
★★★★★ 5
Good calcium and magnesium together
Size: 180 Count (Pack of 1)
Size is easy to take
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
Works great
Size: 180 Count (Pack of 1)
Excellent
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 5
Truly Pure
Size: 180 Count (Pack of 1)
It’s often difficult to find a supplement that only contains the supplement of interest. So many supplements on the market have other additives. I appreciate that this supplement only has what I’m looking for.
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Reviewed in the United States on January 7, 2026
★★★★★ 4
Better for Your Body's Health
Size: 180 Count (Pack of 1)
I liked this version because it's natural without a bunch of unnecessary fillers, preservatives, flavorings, colorings, of other additives. Why can't all manufacturers follow the same example as Pure Encapsulations? Putting the customer health first!
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Reviewed in the United States on October 7, 2016
