Infusil india, an iso 90012000 certified company, offers all quartz double distiller - xl rsh series, which is excellent for tissue culture work. Specifications: conductivity - < 0.1/1 s/cm; silica - < 10 /1 g/ltr; end toxin - < 0.25 eu /ml; distillate - pyrogen free; toc - not detected; quality - reagent grade i is 1070; and capacity - i ltr/hr to 20 ltr/hr. Additional features: replaceable silica heater easy replacement and service free; built-in triple safety - gate valve - saves cooling water in case of power failure, flow switch - unit shuts off in case of condenser water failure and safety pts - if water level falls below the heater, the unit switches off; quartz teflon stopcock - easy draining/cleaning; quartz threaded connection - easy assembly/maintenance.