Plastifex 35' Low Voltage Hose Assembly 1 3/8" Dia for Central Vacuum Systems XE130138035FUN35' Low Voltage Hose Assembly 1 3 8 Dia M PLASTIFLEX for Central Vacuum Systems. This 35' low voltage hose is made from a soft plastic material and will work with most brands of central vacuums. 1 1 4 " attachments can be used with a suitable adapter. It has no button on the metal pipe of the handle. Part#: SGE 138 35 N No button on handle metal pipe 35ft Low voltage 1 3 8" diameter hose Air suction control bleeder valve on handle