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Hilti - The Hilti CFS-C EL Firestop collar endless is a versatile solution that can be used to firestop a wide range of plastic pipes, installed in different configurations and in various
HOW TO install Hilti CP 643 N and CP 644 US firestop collars - UL - YouTube
CFS-C EL firestop endless collar - Firestop Collars, Wraps and Bandages - Hilti GB
HILTI CP 643-110/4'' N FIRE STOP COLLAR 304329 | eBay
Hilti 2" CP 643 N FIRESTOP COLLARS 304326 from Hilti - Acme Tools
Hilti CP 643-63/2" N #304326 Firestop Collar Pack - Silver for sale online | eBay
Piping Penetrations - Hilti Oman
Hilti 15.7 in. x 3.1 in. Hex 28 Steel Scaling Chisel 2254773 - The Home Depot