LTWFITTING Bar Production Stainless Steel 316 Barb Fitting Coupler 5/16" Hose ID x 1/4" Female NPT Air Fuel Water (Pack of 5) Type: Female X hose Barb Tubing ID: 5/16", Thread:1/4" NPT female Materies:Stainless Steel 316 Net Weight: 19.00g/pc Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.