Wichard 125mm Single HR Swivel Head Block Select (See Table Below):WB-44105 125MM HR BLK: SINGLE-SWIVEL - EACH It then provides an instant

It then provides an instant visible check for leaks

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Waterproof sealed bearings

The Johnson 10-35157-1 is a flange mounted

Wichard 125mm Single HR Swivel Head Block Select (See Table Below):WB-44105 125MM HR BLK: SINGLE-SWIVEL - EACH It then provides an instant125mm Single HR swivel head block. Sheave diameter 125mm rope size 18 to 20mm. Forged HR stainless steel shackle, Stainless steel swivel head, 316L stainless steel bolt, Aluminium cheeks (hard coat anodization), Torlon roller bearings, Centring bush for lateral loads, Stainless steel circlip, Hard anodized aluminium sheave with a Teflon coating, Hard anodized aluminium hollow bearing with a Teflon coating. Spec Sheet Part Description Bearing Type