Stainless Steel Double Ferrule Bulkhead Unions - 1/8" OD
Amazon.com: Metalwork 304 Stainless Steel Compression Tube Fitting Male Connector Adapter 3/8" NPT Male x 10mm OD (2 Pcs) : Industrial & Scientific
Ideal Vacuum | Swagelok Tube Fitting, Run, NPT (TMT), Tee Connector, 3/8 in. Tube OD x 3/8 in. Tube OD x 1/4 in. Male NPT, Stainless Steel, Gaugeable, PN: SS-600-3TMT