The Hyper Tough HT38AFR 2-in-1 3/8" Compressed Air Filter and Regulator gets the job done by precisely regulating the pressure of clean, dry air being delivered to your pneumatic tools and spray guns. The 3/8" NPT air inlet provides a higher volume of air and ensures optimal performance from your air powered tools, with a maximum pressure of 150 PSI. A locking pressure knob minimizes inconsistencies in the air flow caused by using compressors, keeping the flow of air more constant and smoother. A convenient sightglass allows you to see the fluid, and the drain valve makes it fast and easy to remove moisture filtered by the water trap. It is unisex with no fresh scent.