3/8" FPT x 3/8" Male BSPP - Adapter - Metallic Brass Pipe Fitting

10mm OD Tube x 3/8" BSPP - Female Straight Bulkhead Connector - Push to Connect Fitting

$9.47

5/16" (8mm) OD Tube x 3/8" NPT - Female Straight Bulkhead Connector - Push to Connect Fitting

$7.91

3/8" OD Tube - Plug - Push to Connect Fitting

$1.23

3/8" NPT - Countersink Plug Vent

$2.09

3/8" OD Tube x 3/8" NPT - Male Elbow Connector - Push to Connect Fitting

$4.24