CRAFTSMAN 1/4-in to 3/8-in Socket Adapter in the Socket Adapters department at Lowes.com
Brass Adapter, 3/8 Female Compression x 1/4 In. Male Compression | True Value
Husky 3/8 in. Male x 1/4 in. Female Reducer HDA30400AV - The Home Depot
3814ADA, 3/8" Female to 1/4" Male Adapter - Triad Orbit
Buy Lasco Female Compression X Male Compression Adapter 1/4 In. FC X 3/8 In. MC
Crescent CDTA0 1/4" Female x 3/8" Male Socket Adapter - - Amazon.com
Amazon.com : Camera Screw Adapter Thread 1/4" Male to 3/8" Female and 3/8" Male to 1/4" Female Adapter Set for Camera Monitor, Tripod, Mount : Electronics