The
Harken Zircon double block is a reliable and versatile double block for a wide variety of line guides when sailing. From the popular Zircon series, this block offers excellent value for money and solid performance for leisure and sports sailors.
Both sheaves run particularly smoothly thanks to freely movable ball bearings and ensure efficient power transmission. The robust, durable design makes the double block ideal for sheets, halyards, runners or other trim lines on dinghies, sports boats and yachts.
Features:
- Double block from the Harken Zircon series
- Low-friction ball bearings for smooth running
- Robust and durable construction
- Two sheaves for flexible and efficient line guidance
- Perfect for sheets, halyards and trim lines
Cleaning and Maintenance of Blocks:
- Rinse blocks regularly and thoroughly with warm fresh water to remove salt and dirt (carefully assist with a soft brush if necessary).
- For heavier soiling: Soak the block in warm fresh water with a little dish soap and move the rollers (do not use harsh cleaners).
- Avoid pressure washers, as water and dirt can be forced into the bearing.
- Allow to dry thoroughly afterwards to prevent corrosion.
- Lubricate only when necessary and according to the manufacturer's instructions.
- Note: Many modern bearings are maintenance-free or self-lubricating – improper lubrication can impair their function.
- Disassemble only if explicitly instructed by the manufacturer, as not all blocks are designed for maintenance or disassembly.