Telephone Duct

Type B

	For use in concrete encased installation
	683* Series – Type B
	684* Series – Type B Heavy Wall

Bellcore CAO8546
NEMA TC-10
RUS Accepted

Type C

	For use in direct bury or concrete encased installation
	685* Series – Type C

Bellcore CAO8546
NEMA TC-10
RUS Accepted

Pre-lubricated Type C (Tel-Gard)

	For use in direct bury
	685*L Series - Pre-lubricated Type C
	598*L Series – Pre-lubricated High Performance DB Duct
	Also for use in exposed or concealed applications aboveground.
	Exceeds Bellcore minimum coefficient of friction

Meets NEMA TC-10 – Type C
Exceeds NEMA TC6 & 8 – DB Duct

Type D

	For use in exposed applications
	Color: White
	686* Series – Type D

RUS Accepted

Telephone Duct Brochure