The 38459707 filter dryer from Ingersoll Rand is used in the refrigeration circut on their non-cycling refrigerated air dryers. Despite a controlled vacuum in the refrigeration cycle, traces of moisture can still accumulate. The 38459707 filter dryer absorbs this moisture to ensure the longveity of the refrigeration compressor and components.
The filter was used on the following Ingersoll Rand air dryers
37995925
88344171
38457412
38459616
38457594