McMaster-Carr offers a wide selection of 1/4" NPT pipe fittings made from various materials including brass, stainless steel, black iron, and galvanized steel. Fittings come in many styles including elbows, tees, couplings, bushings, caps, crosses, unions, and more. Dimensions like thread length and center-to-end distance are specified. Pressure ratings up to 6000 psi are available for some fittings. Many fittings meet standards like ASME B1.20.1 and MSS SP-95. The fittings can be used for air, water, oil, natural gas, and steam applications. Prices range from around $2 to $50 per fitting. Quantity discounts are available. Most fittings ship within 1 business day.