M14 Female To 1/2 Inch 1/4 Inch M10*1 Male Pressure Gauge Fittings,m20 Female To 1/2 Inch 1/4 Inch Male Pressure Gauge Adapter - Pipe Fittings - AliExpress
B&K 1/2-in x 1/4-in Threaded Male Adapter Bushing Fitting in the Brass Fittings department at Lowes.com
Reducer 1/2" Female to 1/4" Male Npt Pipe Adapter Male Female Thread Water Oil | eBay
Threading Adapter, NPT 3/8 Male to G 1/4 Female
1/2" Hose ID x 1/4" Hose ID Reducer Barb Mender/Splicer/Joiner/Union Fitting Brass Tubing Hose Adapter/Coupler 2pcs: Amazon.com: Industrial & Scientific
LASCO 1-1/2-in x 1-1/4-in Adapter PVC Adapter in the PVC Pipe & Fittings department at Lowes.com
Everbilt 1/2 in. x 3/4 in. Copper Pressure Cup x FIP Female Adapter Fitting C603HD1234 - The Home Depot
2" to 1-1/4" Hitch Adapter
Threading Adapter, NPT 1/2 Male to G 1/4 Female
Auray 5/8" Male to 3/8" & 1/4"-20 Female Combo AD-COMBO-S B&H
3 Piece Socket Adapter Set Increasing 3/8" 1/2" 3/4" Female 1/4" 3/8" 1/2" Male - Walmart.com