Control Vertical Lead Block

Optimised Line Alignment

The Lewmar Control Vertical Lead Block is designed to manage control lines cleanly and efficiently where vertical redirection is required. Purpose-engineered for modern deck layouts, it ensures control lines are led at the correct angle, maintaining smooth operation and reducing unnecessary load on clutches, winches, and deck hardware.

Vertical Lead Functionality

Developed to guidelines upwards from deck organisers to rope clutches or winches, the vertical lead block provides precise alignment within complex control systems. Its fixed geometry maintains consistent lead angles, helping to prevent chafe, minimise friction, and preserve rope life during repeated trimming and easing.

Marine-Grade Construction

Manufactured from durable, marine-grade materials, the Control Vertical Lead Block is built to withstand constant exposure to saltwater, UV, and sustained mechanical load. Robust side plates and a precision-engineered sheave deliver reliable strength, dimensional stability, and long-term performance in demanding onboard environments.

Smooth, Consistent Performance 

Designed to promote efficient rope flow, the block delivers predictable, low-friction operation that supports accurate sail control land reduced handling effort. By maintaining proper line alignment, it helps optimise the performance of downstream hardware, contributing to smoother overall system operation.

Installation & Application

Well-suited to control-line systems leading to clutches or winches, the Lewmar Control Vertical Lead Block integrates cleanly into both new builds and professional refit projects. Its compact, purpose-led design makes it an essential component in organised, performance-focused deck layouts, backed by Lewmar’s proven deck-hardware expertise.