Numatic tdp930 large commercial extraction cleaning system, utilising the ctd900-2 machine working in unison with a ‘570’-size slave unit, both joined by 10m ‘umbilical cord’. the 570 unit’s capacity is 30l of cleaning solution which is pumped to the 900 extraction unit, also having a 30l capacity for the dirty water. extraction performance with the ‘widetrac’ twin-jet spray extraction nozzle gives 90%+ liquid recovery. for use around the larger commercial premises; offices, large restaurants, foyers, etc., anywhere with really large areas of carpeting to be cleaned. standard kit-a50 has both carpet and upholstery cleaning nozzles.