K & H Perfect Climate Delux De-IcerK and H Thermo Pond Deluxe Perfect Climate Pond De Icers have "reinvented the wheel" when it comes to keeping ice out of your pond. The Perfect Climate De Icer can be used as a floating de icer or can be converted into a submersible de icer with the push of a button! Helps create perfect winter climate for your fish All in one design transforms from submersible to floating version in seconds Safe for all ponds; will not burn pond liners This safe,