16oz PTFE THREAD SEAL PASTE PINT BLUE MONSTER COMPOUND DWV DOUBLE SANITARY TEE and non stick polytetrafluoroethylene (PTFE) disc to metal 8160278220 and non stick polytetrafluoroethylene (PTFE) disc to metal seating Constructed with a polypropylene outer shell the granular activated carbon (GAC) is packed between an internal pre and post filter to reduce the release of carbon fines commonly associated with GAC style cartridges Blue Monster Professional Grade pipe joint compounds have been engineered to address poor quality metal threads and the increased use of plastic pipe systems They won’t "separate" in the can as easily as other brands when not in use and they adhere to the threads even in the presence of water or oils