Harken 5mm Shallow Bow Shackle [2132] Folding Kayak Promotes growth of algae controlling

Promotes growth of algae controlling beneficial bacteria

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it is the pump that produces the compressed air that is delivered to the bottom of the pond

They are also great to use at the end of a dock to stabilize the tip from rocking

Harken 5mm Shallow Bow Shackle [2132] Folding Kayak Promotes growth of algae controlling5mm Shallow Bow Shackle Forged stainless steel shackles are polished to a high luster and are stamped with the screw pin diameter. Bow shackles are best for multidirectional loads. Shallow bow shackles are proportionally wider for their length than regular bow shackles. Specifications: Shackle pin: 5mm 3 16in Weight: 14. 5g 0. 51oz Maximum working load: 540kg 1190lb Breaking load: 1080kg 2380lb