GRM1009 | GROMMET 3/8 INCH LINE SET | Trane

GROMMET 3/8 INCH LINE SET - GRM1009 by Trane The GRM1009 grommet is a small but essential part of any line set. It is used to seal the hole in the wall or ceiling where the line set passes through. This helps to prevent air and moisture from entering the home, which can improve the efficiency of the HVAC system. The grommet is made of a durable rubber material that is resistant to wear and tear. It is easy to install and can be used with any type of line set. Shop our HVAC supply store for the best prices and fast shipping on all of your HVAC needs!