Detailed Product Description 1.Item: Deluxe R134A Adjustable Quick Couplers2.Model: QC18-L, QC18-H, QC19-L, QC19-H3.Use: for R134A4.Our strength: As we have own factory, so we could offer high quality products with very competitive prices.Model DescriptionQC18-LLow side * M14mm female 90°QC18-HHigh side * M14mm female 90°QC19-LLow side*1/4" male flare 90°QC19-HLow side*1/4" male flare 90°