SMC KQ2R01-07 Plug-In Reducer, 1/8 x 1/4 In, Tube. More details: Plug-In Reducer, Basic Material Plastic, Body Material Polybutylene, Connection Type Tube, Tube Size 1/8 In., Stem OD 1/4 In., Max. Pressure 145 psi, Color White/Gray, Temp. Range 23 Degrees to 140 Degrees F