Amazon.com: Horiznext Stainless Steel Compression Fitting, 1/4" Tube OD x 1/4 NPT Male Coupler ss tubing adapter : Industrial & Scientific
Dip Tube with Compression Fitting for Keg or Kettle 1/2" - Stainless S | NY Brew Supply
Amazon.com: Horiznext Stainless Steel Compression Fitting, 1/2" Tube OD x 1/2 NPT Male Coupler ss tubing adapter : Industrial & Scientific
Beduan 304 Stainless Steel Air Compression Tube Fitting, 6mm Tube OD x 6mm Tube OD, Equal Straight Connect for Tubing Pipe Line (Pack of 2): Amazon.com: Industrial & Scientific