Air Spool Straight

HP Air Spools   Every Diver should have extra ones of these. This is the most common problem or failure on most gauges.  If you have a leak underneath your high pressure gauge boot this is usually where it is coming from.    Two Different Versions: Straight Version             This one has no lip in the center.    Tee Version             This one has a Tee in the center.    John’s Quick Tips: HP Spools   The o-rings can be changed on HP spools but are best done at home not at a dive site.  A spare spool is cheap and easy to change in the field.  Make sure that you lube the spool heavily.  This will prevent water from getting up inside and drying out to form salt crystals.