Uxcell a15112100ux0087 NPT 1/4" Male Thread to 5/16" Dia Tube SPush in Connect Fitting 10 Pcs (Pack of 10) Item Name : Push in Fitting; Total Size : 23 x 16mm/0.9" x 0.63" (L*W) Thread Diameter : NPT 1/4" (13mm);Fit Tube Outside Diameter : 8mm/0.3" Material : Metal, Plastic; Color : Gold Tone, Blue Weight : 84g Package Content : 10 x Push in Fitting