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Home Improvement > All Plumbing > Valves > Part #: R520
SKU #: ASD5375

American Standard Ceratherm 1/2" Rough-in Valve (A4215 NU)

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American Standard Ceratherm 1/2" Rough-in Valve (A4215 NU)


  • Temperature and volume control
  • IPS inlets
  • 7.2 GPM @ 40 PSI
  • High temperature limit stop

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American Standard Ceratherm 1/2" Rough-in Valve (A4215 NU)

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Product Type: Thermostatic valveValve Application: Tub valve; Shower valve
Mount Type: WallPrimary Material: Metal
Number of Items Included: 1Connection Type: IPS
Country of Manufacture: China 

About the Manufacturer

American Standard America is a leading North American manufacturer of bath and kitchen products. The Company participates in all key product categories including bathroom and kitchen faucets, fixtures and furniture with leading positions in toilets and the number two position in bathroom fixtures in the U.S. and overall category leadership in Canada, the Dominican Republic, and Mexico. Products are marketed under brand names such as American Standard, Porcher, and Jado. American Standard America delivers products to a wide range of customers in both residential and commercial markets and for new construction and replacement/remodeling. The network includes wholesalers (including showrooms), retailers (including do–it–yourself centers) and specialty merchants.

Before American Standard, there was the Standard Sanitary Manufacturing Company. It was founded in 1875, and merged with several other small plumbing manufacturers in 1899 to form the Standard Sanitary Manufacturing Company. Standard Sanitary pioneered many of the plumbing product improvements introduced in the early part of this century including the one-piece toilet, built-in tubs, combination faucets (which mix hot and cold water to deliver tempered water) and tarnish-proof, corrosion-proof chrome finishes for brass fittings. By 1929, Standard had become the world's largest producer of bathroom fixtures. That same year, the Standard Sanitary Corporation merged with American Radiator Company to form the American Radiator and Standard Sanitary Corporation. The corporation adopted the name "American Standard" in 1967. And in 2006 American Standard celebrated one of their most successful years of innovation. They have introduced new products and innovations in all of our areas, leaving an indelible impression on the industry.

American Standard Brands was formed in February, 2008 from the merger of 3 companies: American Standard Americas, Crane Plumbing, and Eljer.

American Standard Ceratherm 1/2" Rough-in Valve (A4215 NU)

Questions & Answers (1)


“Hello, what size inlets does this unit have? Also, what trim kit is it compatible with?” asked by Belia

"Hello Belia, this product has 1/2" IPS inlets. The valve is compatible with the ASD-6956 Trim Kit." Chu from Wayfair

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When you buy a American Standard Ceratherm 1/2" Rough-in Valve (A4215 NU) online from Wayfair, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the American Standard Part #: R520 here. If you have any questions about your purchase or any other Rough-In Valves product for sale our customer service representatives are available to help.Whether you just want to buy a American Standard Ceratherm 1/2" Rough-in Valve (A4215 NU) or shop for your entire home, Wayfair has a zillion things home.
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Unique valve for a customn installation

from Tampa, FL – Verified Buyer

Valve wasn't easy to find elsewhere. Price was in line.

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Never comfortable

from Regina, SK.

After running the water for 15 minutes I never got a comfortable temperature. It seems it stays on full hot or cold and just about the time it gets to tepid it suddenly overcompensates and gives you too much of the other temp. It has been in only a day and I am ready to suffer the loss and remove it. Worst valve I have ever used anywhere (including cheap hotels).

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Ceratherm 1/2" Rough-in Valve (A4215 NU) is also sometimes listed under the following manufacturer numbers: R520