Check the listing for details. 74078 Ozone Injector. Color: Black, Condition: New. Listed at 39.55 USD. Ozone Injector This part is a replacement ozone injector for select Hot Spring hot tubs. The injector works by vacuuming while water passes through it. Ensure that ozone gas that is present is siphoned into the plumbing system of the spa. Compatible with 1995 to current Hot Spring Highlife, Limelight, and Tiger River spa models. Make Model Date Range Tiger River Bengal 1997-2010 Tiger River Siberian 1997-2004 Tiger River Caspian 2003-2010 Tiger River Sumatran 1994-2010 Tiger River Tondi 1995-1996 Tiger River Bengal Model MM 2005-2010 Tiger River Khyber 1994-1996 Tiger River Manora 1994-1996 Tiger River Tondi PH 220 1996 Tiger River Manora MH 220 1996 Caldera Tahitian 2001-Current Caldera Niagara 2001-Current Caldera Geneva 2001-Current Caldera Cantabria 2009-Current Caldera Hawaiian 2002-2010 Caldera Kauai 2001-2010 Caldera Moorea 2006-2010 Caldera Salina 2011-2015 Caldera Makena 2013-2015 Caldera Martinique 2001-2015 Caldera Aspire 2004-2008 Caldera Elation 2003-2010