The seat extractor tool for Aqualung first stage is used for installing and removing the HP seat of the Aqualung Legend first stage.
To remove the high-pressure seat put the stainless steel end of the tool inside one of the middle-pressure ports and push out the seat. The other acetal side of the tool is used to press the serviced seat back in place without damaging the service of the high-pressure seat.
 
The Aqualung high pressure seat tool is precision machined from white acetal (POM-C) and has a  stainless steel rod.
 
GTIN: 08720865017280