TCP Global 25 Foot Pressure Tank Air and Fluid Hose Assembly with Fittings AH25-SET 25 Foot Pressure Tank Air and Fluid Hose Assembly with Fittings Air Hose Inlets: 1/4" NPS (F) Fluid Hose Inlets: 3/8" NPS (F) The fluid hose is ideal for use with a wide range of materials.