Spare discs and removal tool for electric wall fire. Optimum position for transducer in the water is 5cm. 1 x Transducer. for 2 x Transducer Discs. BBK20(Series A- D)' BBK20(Series for E)' BRG20(Series A)' DNV20CH(Series A- Onward)' DNV20AB(Series A- for C)' DNV20BL(Series A- for Onwards)' DNV20BR(Series A- for C)' MFD20(Series A)' OKT20(Series A)' RDY20(Series A- D)' RDY20(Series for E)' SCR20(Series A)' SCR20(Series for K)' TAH20(Series A)' TAH20(Series for E)' WBK20(Series A)' WMR20(Series A)' ALM20(Series A)' AUB20(Series A)' CAS600' CAS400NHLL' CAS400HLL' CAS600NH' RTOPC 0' RTOPW20' RTOPI20BR' RTOPI20CH' SVT20(Series A).
