Harken Aluminum Double Swivel Block - 57mm Fluids & Lubricants Non-corrosive with no harsh chemicals

Non-corrosive with no harsh chemicals being emitted

Evercoat One Step Premium Finish Gel-Kote

(30 ml) for every 16 gallons (60 L) of fuel

An example would be anchor shackles which are regularly immersed in salt water

Racor 10 Micron 1000 Series Aquabloc Fuel Filter/Water Separator Filter Element

Harken Aluminum Double Swivel Block - 57mm Fluids & Lubricants Non-corrosive with no harsh chemicalsThe entire line of Black Magic Air blocks has been redesigned with a sleek new look. Their unique, performance packed engineering remains exactly the same. These strong, lightweight blocks feature free rolling high load Torlon roller bearings for a high strength to weight ratio. Like all Black Magic blocks, the three way head swivels locks in front side positions. Blocks are easily disassembled with a single hex wrench.