SKU: 3435636191

Ronstan Series 50 All Purpose Block - Triple

$91.87 $102.08
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 28 - Sep 2

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Description

Ronstan Series 50 All Purpose Block - TripleSeries 50 All Purpose Block Triple Features: Exceptionally high working loads Low maintenance, long service life Self lubricating Acetal polymer sheave ensures low friction and extreme durability Slotted pin shackle eliminates fouled lines Lockable swiveling head post Snap fit removable becket pin All purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless steel races perform equally

Series 50 All Purpose Block - Triple

Features:

  • Exceptionally high working loads
  • Low maintenance, long service life
  • Self-lubricating Acetal polymer sheave ensures low friction and extreme durability
  • Slotted pin shackle eliminates fouled lines
  • Lockable swiveling head post
  • Snap fit removable becket pin

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 high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Head can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position.

Applications:

  • Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10m (33ft)
  • S60 - on boats up to 12m (40ft)

Materials:

  • Grade 316 stainless steel load strap
  • Impact and UV resistant, fiber reinforced Nylon cheeks

Manufacturer Part Numbers: RF51300
GRP:WRO
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 3435636191

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4.6 ★★★★★
Based on 28 reviews
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B
Verified Purchase
Ben Hancock
Port Orchard, US
★★★★★ 5
Better quality that name brand hardware store
Pattern Name: 20x20x1, Style: Merv 11
These are a great value for a multi-pack. They fit perfectly in the vent and you can definitely notice the difference in air quality. It’s much easier to just have a stack of these on hand so I can swap them out regularly without a trip to the store.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
M
Verified Purchase
Matthew
Whiting, US
★★★★★ 5
Great value filters – do the job well
Pattern Name: 12x12x1, Style: Merv 8
These filters are a great value for the price, especially getting a 6-pack. They fit perfectly (just keep in mind the actual size listed), and installation is quick and easy. I’ve been using them regularly and they do a solid job catching dust and keeping the air clean without restricting airflow. Good balance between filtration and performance. Nice to have multiple on hand so I can swap them out regularly without thinking about it. I’ll definitely keep buying these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
C
Verified Purchase
Cole Reichel
Omaha, US
★★★★★ 5
Perfect measurement and fit
Pattern Name: 20x25x1, Style: Merv 8
Seem to be of good quality, we will see in two more months if they hold up, but one month down, still doing good!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
U
Verified Purchase
Upstate NY Girl
Alexandria, US
★★★★★ 5
Most comfortable pillows for my back
I have a really bad back along with sciatica so I use these pillows on my recliner chair, one for my back and one under my bottom. They make all the difference in the world. They are soft and squishy yet still offer support. They are a great value for sure. This blue color was about half the price of other colors with was fine with me because I put washable covers on them anyway. I frequently fall asleep on them. My dog loves when they accidentally fall on the floor because he curls up on them and falls asleep. He finds them very comfortable. I can't say enough good about these. They would be great on a bed or couch too or even as a floor cushion. They are high quality, well made pillows.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
J
Verified Purchase
JM's Be Fabulous
New York, US
★★★★★ 5
Pillow
Color: White, Size: 18x18 Inch
Great pillow and fit the cover perfectly! So soft and durable! The perfect item I was looking for. The appearance is great after the cover is added.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026

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