37 Degree Flared Tube Fitting - 316 Stainless Steel - Male Elbow - 3/8" Tube OD x 1/4" NPT Male
Ideal Vacuum | Swagelok Tube Fitting, Male Tube Adapter, 1/4 in. Tube OD x 1/4 in. Male NPT, Stainless Steel, Part Number SS-4-TA-1-4
1-1/4"-12 ROUND Weld In Tube Adapters – TMR Customs
Buy Tube Adapter - Square, 3/8-16 Thread Stem for 16 to 18-Gauge Tubing, 1-1/4"W, Heavy Duty Metal Base | Shiffler - Furniture, Fixtures and Equipment for Schools