WM Pacifyre MKII intumescent fire collar for penetration sealing of plastic conduit and pipes with outer diameter 46 to 52 mm. Chemical intumescent stop system activates at 180 degrees C, expanding to seal the aperture on melt-back of the plastic pipe and maintaining the fire compartment rating. Plug-in sleeve lock; overall dimensions 75 x 75 x 205 mm. Typical application is on floor and wall penetrations of PVC/PP drainage and service pipes.