
Marshalltown M621 Twisted Nylon Mason's Line 285' Yellow, Size 18 6" Core
The Marshalltown M621 Mason's Line is a high-quality twisted nylon line designed for precision and durability on site. Heat-set after winding for improved stability, this line resists mortar, oil, mildew, and water absorption, ensuring long-lasting performance in demanding conditions. Ideal for bricklaying, blockwork, landscaping, and general site layout, it offers reliable tension and visibility. Proudly made in the U.S.A, it is a trusted choice for professional tradespeople.
Features:
Heat set after winding to stabilize
Not affected by mortar, oil or mildew, will not absorb water
For staking out sites before concreting, landscaping or laying bricks and blocks
Core 4” (100mm)
Includes:
1x Marshalltown M621 Twisted Nylon Mason's Line 285' Yellow, Size 18 6" Core