uxcell 1/4" PT Famale Thread Silver Tone Metal Straight One Way Check Valve Product Name : One Way Check Valve;Color : Silver Tone Thread Size : 1/4" PT;Thread Diameter : 12.7mm Size : 40 x 18mm/ 1.57" x 0.71" (L*D);Material : Metal Weight : 38g Package : 1 x One Way Check Valve