Rectorseal 83017 Flex Wall Sleeve 3 x 5-7

The NFP75 3″ Telescoping Wall Sleeve is used to create a clean sealed wall penetration for the interconnecting piping and cables typically used in Ductless Mini-Split installations. Proper use of the NFP75 Wall Sleeve along with effective maintenance will allow for a more energy efficient installation and long term cleanliness of the evaporator and blower wheel on high wall ductless installations. Telescopes from 4″ to 7.5″. If wall is thicker then 7.5″ two NFP75s and be joined to create custom lengths as needed. Features Provides a seal when penetrating walls.