MT4L 1.5" 90° Multifit Bend x Plain End

It appears that you have provided a product name and description for a plumbing fitting. The "McAlpine 90 Bend Multifit X Plain End 42Mm Mt4L" is a plumbing fitting designed for use in waste and drainage systems. Here is a breakdown of what each component of the product name refers to: McAlpine: This is the brand name of the manufacturer of the fitting. 90 Bend: This refers to the angle of the bend in the fitting, which is 90 degrees. Multifit: This means that the fitting can be used with a variety of pipe materials, including PVC, copper, and lead. X Plain End: This indicates that the fitting has a plain, unthreaded end. 42Mm: This is the diameter of the pipe that the fitting is designed to fit. Mt4L: This is a code that specifies the type of connection that the fitting uses. Without more context, I'm not sure what this code specifically refers to. Overall, the McAlpine 90 Bend Multifit X Plain End 42Mm Mt4L is a specific type of plumbing fitting that can be used in certain waste and drainage systems. Multifit Fittings suit all plastic waste pipes to BS EN 1451-1:2017 and BS EN 1329-1:2020 and copper pipe and lead pipe Available in 1.25", 1.5", and 2" sizes Plain end designed to fit in to other fittings or Traps with a compression connection