The differential pressure indicators 4.36 and 4.46 from BOLL & KIRCH provides you with robust, compact devices which display the contamination state of the filter insert. These can be mounted on every BOLLFILTER and they display on the coloured segmented disk when filter cleaning is required.
1938648
1942175
BK-3630028
aquaBoll 6.18.3
6.19
3549918
2312011
5300009
5376612
1450049
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