UltraKlean™ Biological Pressure Filter Electronic Control Board & Ballast Kit Select Product:UltraKlean 3500 Control Brd & Ballast Kit -95057 The chart directly below shows

The chart directly below shows the pump specs needed to achieve the "Display Height" shown (left-hand column)

Also attached is a pressure relief valve which opens at approximately 17 psi to prevent damage to the compressor

PondMaster 150 GPH Statuary Pump (02622)

Will not harm delicate fish or pond plants

PondMaster Bubbler Fountain Head Kit

UltraKlean™ Biological Pressure Filter Electronic Control Board & Ballast Kit Select Product:UltraKlean 3500 Control Brd & Ballast Kit -95057 The chart directly below showsReplacement Electronic Control Board and Ballast Kit (#3 in the image below) for UltraKlean Biological Pressure Filter, introduced in 2014 UltraKlean 2000 Biological Pressure Filter Electronic Control Board and Ballast Kit UltraKlean 3500 Biological Pressure Filter Electronic Control Board and Ballast Kit UltraKlean BioBalls (#5 in image above) can be ordered here.