Comparison : Item # 1105850001, Aluminum Aerosol Coupling Set (Male/Female)
Item # 1105850002, Stainless Steel Aerosol Coupling Set (Male/Female)
Item # 1106010001, Aluminum Female Coupling Only
Item # 1106010002, Stainless Steel Female Coupling Only
Item # 1110130001, Flouroelastomer “A” O-Ring