hhyoosoo winterize blowout adapter with 1/4" male quick plug & 3/4" female garden hose threading, brass quick fitting with ball valve for blowing out water to winterize water lines (female ght) hhyoosoo <br> <b>specifications:</b><br> 1/4" male air compressor quick plug to 3/4" garden hose inner thread.<br><br> <b>operation steps:</b><br> 1. connect the adapter's female side to water lines, insert the quick plug to air compressor' quick female coupler.<br> 2. turn on the air compressor and regulate air pressure to 45-55psi according to manufacturer's suggestions. for safety, don't exceed 85 psi.<br> 3. turn on the air outlet valve on the air compressor, rotate around ball valve's stem to open/close and modulate the air flow velocity to blow out the water from the water lines. all these can be operated by one person.<br> 4. after blowing out all water, turn off ball valve&air compressor and disconnect the air line, unscrew the adapter from water lines system.<br><br> <b>please notes:</b><br> 1. always wear approved safety gloves and glasses when using this product.<br> 2. for garden hose winterizing suggested working pressure is 45-55psi.<br> 3. for vehicles winterizing suggested working pressure is 25-30psi.<br> 4. for long-time runs, please note to stop and let the air compressor cool off every few minutes<br>