The JI is simply a replacement pump from Berkeley. Nothing special about them, just all new stuff instead of rebuilding all your old stuff.
"This pump is the latest evolution of the family of Berkeley Jets With over a million pumps sold we've used our knowledge to develop the All New Berkeley 12JI Pump br>This pump begins its construction with a super tough, high strength aluminum alloy 356T alloy casting the strongest most serviceable aerospace material around Then each unit is CNC machined, hard anodized, and powder coated "Berkeley White™" Each unit is assembled using only the finest in stainless steel hardware, but its what's inside that counts Starting with Berkeley's unique single stage mixed flow impeller that produces maximum thrust per horsepower"
