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=== 3/4" Wrot Copper ===[[File:120x120_34wrotcopper.jpg|none]]Wrot copper solder pressure 90-degree elbow is used with residential copper pipe installations for water, air conditioning and refrigeration. == Copper Pipe ===== Copper Water Pipe Fittings ===Copper water pipes are durable, easy and flexible to install, and resistant to weather and bacteria. They resist bacteria because copper is biostatic. Copper pipe comes as tempered lengths that are hard, and annealed, or malleable coils known as soft copper. Unlike CPVC, or chlorinated polyvinyl chloride tubing, copper plumbing doesn't release toxic gases in the event of a fire because it resists burning. The use of copper has somewhat decreased in residential installations due largely to the dramatic increases in price. Copper as a metal has become excessively valuable. Also, the popularity of and ease of [[PEX Supply Water Piping]] has impacted the popularity of both copper and CPVC. * Cast: Cast copper fittings can be used in drain, waste and vent systems. * Wrot: Wrot copper fittings can be used in a variety of water related applications.* Press: Press copper fittings provide secure, reliable joints. A specially engineered O-ring and press-fit tool work together to create a watertight seal.* Related: Pre-soldered fittings are Wrot fittings with the solder inside at the joint which can be heated to create a bond. Plastic Push fittings, also known as Push and Go, can be used to connect two copper pipes, as well as pipes of different materials. Push and go work on joining copper, PEX, CPVC, and polybutylene pipes.