2 pack, 3/8" fnpt x 1/4" mnpt hose fitting adapter, assemble new hoses or replace old fittings on hoses when reduction in pipe size is required, 3/8" female national pipe thread on one end, 1/4" male national pipe thread on the other, brass adapter bushing.
WARNING: This product contains a chemical known to cause cancer. www.P65Warnings.ca.gov.