Schaefer Single Aluminum Block - 51mm Sheave [504-05] Boat Outfitting | Non-Skid Paint we have easy-to-install Dura-Port discharge

we have easy-to-install Dura-Port discharge ports to eliminate stress cracking caused by over-tightened hose clamps

Uses most common marine oil pressure

Long-lasting protection

Over load shutdown

Schaefer Single Aluminum Block - 51mm Sheave [504-05] Boat Outfitting | Non-Skid Paint we have easy-to-install Dura-Port dischargeSingle Aluminum Block 51mm Sheave Single block with anodized aluminum cheeks. Delrin sheave ensures smooth operation with high safe working load. Swivel head may be locked in place to avoid twist. Specifications: Sheave Dia. 2" (51mm) Thickness 15 16" (24mm) Width 2 1 8" (54mm) Length 4 13 32" (112mm) SWL 1750 lbs. (795kg) Weight 5oz. (142g) Max. Line size 7 16" (11mm)