Danfoss Waltech Welding Nipples for Tube 20 x 3 - SN20X3 Hydraulic DIN 2353 Compression Fitting, O-Ring Seal, Welding Nipple, to Suit Tube Size 20 x 3mm, Chromium Plated Steel, Maximum Working Pressure 250 bar, Danfoss Waltech GBP 15.39 1