Comparison : Item # D2-11.1Y, D Series Frascold Compressors
Item # D2-13.1Y, D Series Frascold Compressors
Item # D3-13.1Y, D Series Frascold Compressors
Item # D2-15.1Y, D Series Frascold Compressors
Item # D3-15.1Y, D Series Frascold Compressors