Containing 5 G. l. channels each3 meter long having diameters12,20, 25,40 and 50 mm andeach having two cockerels to be associated with a manometer. Thewhole out fit Is mounted Jon two U molded steel channelspieces so it can be fitted vertically against a divider withoutfoundation jolts and without manometer.
(B) Collecting Tank for above: Size 80x75x50 cm. Completewith deplete cockerel measure glass, and scale graduated in cm andlitres.

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