Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Red Brass Seamless Pipe Fitting, Nipple, Schedule 80, 3/4" NPT Male X 2-1/2" Length
Product description: The Merit Brass nipple is a schedule 80 seamless red brass pipe fitting with male National Pipe Taper (NPT) threads for connecting and extending female threaded pipes. This fitting has NPT threads for creating tighter seals than straight threads. Made from seamless red brass for increased strength, this nipple is easier to clean than regular brass and more corrosion resistant than stainless steel. Seamless pipe is produced from a solid piece of metal that is heated and moved over a form until the steel is shaped into a hollow tube. It can withstand pressure better than ductile or welded pipes. This nipple meets standard NSF/ANSI 61 for use with drinking water supplies of pH 6.5 and higher and standard ASTM B-687 for quality assurance., Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness)., Merit Brass manufactures pipe nipples following ISO 9001 standards for quality assurance. Family-owned since 1937, the company is based in Cleveland, OH. Merit Brass distributes pipe fittings to the United States and Canada.
Product feature: Nipple for connecting and extending pipes, Male National Pipe Taper (NPT) threads for connecting female threaded pipes, Made from brass for higher corrosion resistance than steel, Made of Alloy 230 from seamless red brass pipe for greater strength and ease in machining than yellow brass, Manufactured to standard NSF/ANSI 61 for use in drinking water supplies of pH 6.5 and higher
Product price: $12.00
Product brand: Merit Brass
Target attributes: Material
Answer: attribute: material
value: brass
source: product description
attribute: material
value: brass
source: product brand
attribute: material
value: brass
source: product title
attribute: material
value: brass
source: product feature