Watts 3-Pack 3/8-in Sleeve Fitting in the Brass Fittings department at

Reducing Brass Fitting 3/8 1/2 M14 M18 M22 Thread Connector Male Female Adaptor Pressure Washer Gun Hose Connector - AliExpress

Master Plumber Compression Sleeves - Brass - Plumbing Fitting - 3/8-in dia - 3-Pack 280

PlumbShop Brass Compression Sleeve, 3/8-in OD, 2-pk

Proton Pack Brass Kit Full-size & Spirit Packs

Brass - Specialized Fittings

Express Pack Brass Field Attachable Hose Mender / Splicer

Watts Brass Fittings at

Watts 3/4-in Brass Plug Fitting - Gold, Durable and Long Lasting in the Brass Fittings department at

This unique lead-free compression adapter comes already assembled with a captive sleeve, this puts even pressure on the tubing and ensures a tight

Everbilt 3/8 in. Comp x 1/2 in. MIP Brass Adapter 804599 - The Home Depot

HEL 10mm / M10 / -3 AN / 1/8 BSP Copper Crush Washers (10 Pack)

Daptemn 36 PCS Brass Air Brake Line Fitting Assortment Kit 1/4 3/8 1/2 Inch DOT Air Line Quick Connect Fittings, Push to Connector NPT Thread Tube for Replace Air Line Fittings : : Electronics

Steel Pipe Fitting - Hex Union, Brass, Male, Threaded, MISUMI

PlumbShop Brass Compression Union Tube, 5/16-in OD, 1-pk

Dorman AutoGrade 3/8 Inch Tee Connector 788-031

PTC Tube x Male NPT or BSPT Round-No Hex Connector