AQUAFORTE TANK UV-C The Tank UV-C is a handy alternative to the immersion UV-C; it is not fully submerged but mounted in a wall by means of a threaded tank connector. In this way a filter can easily be fitted with a UV lamp without pressure loss for the pump. Available with normal ballast or “Signal” ballast which indicates when the lamp needs to be replaced. Max. wall thickness: 20mm. Tank connector fits into a hole of Ø48mm. Max. pressure/depth: 1 bar/10 meter.