Harken 80mm Single Element Block Mastbase w/Swivel [6221] Ram Mount Store | B Size The 717-140A-DVSR is designed for

The 717-140A-DVSR is designed for twin engine installations

25" suction cup twist lock base

The Sea-Dog® Pop-Out Deck Plate is constructed of UV stabilized molded ABS and polycarbonate for its structural strength

Sunlight Readable

is therefore charged with priority

Harken 80mm Single Element Block Mastbase w/Swivel [6221] Ram Mount Store | B Size The 717-140A-DVSR is designed for80mm Single Element Block Mastbase with Swivel Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Elements design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks. Sideplates are hardcoat anodized to resist