Hose clamp W4 (alternative to heat-shrinkable hose)
With a powerful and durable seal, hose clamps close the top end of universal grommets for pipes, lines and cables routed through the roof as an alternative to heat-shrink tubing. Simply slip the matching hose clamp over the end of the universal grommet. We recommend the use of an additional silicone attachment for the top end of the universal grommet.

