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Fire extinguishers. However, carbon tet is so toxic by itself that it isnot used for dry cleaning nor for any other thing.
A street elbow is a type of plumbing or piping fitting intended to join a piece of pipe and another fitting at an angle. The difference between a street elbow and a regular elbow is the nature of the fittings on either end. A regular elbow has hub or FIP on both ends. A hub is a female ABS, PVC or copper pipe receiver; FIP denotes Female Iron Pipe threads, that is, it receives threaded MIP iron, brass or plastic pipe on both ends. FIP is also known as FPT, Female Pipe Thread, and MIP denotes MPT Male Pipe Thread. Generically, these are known as NPT fittings (National Pipe Thread fittings). A street elbow has a female fitting (hub or FIP) on one side and a male pipe or MIP fitting on the other end. The advantage of the street elbow is that it can be connected directly to another fitting without having to use a short connecting piece called a pipe nipple. Street elbows are available in 90°, 45° and 22.5° bends. They can be used in water supply, drainage, sewer vents, central vacuum systems, compressed air and gas lines, HVAC, sump pump drains, and any location where plumbing fittings would be used to join sections of pipe.
