Yes, exactly the same as the 1944 pattern. The only picture I know of for the tablets is in David Gordon's book on equipment of the British Tommy. The tubes were, apparently, made of plastic which became extremely fragile very quickly and so were pretty useless.
This is a Danish M-1948 Feltflaskhylster, which could also be attached to the M-1949 Paksaek. Used on M-1945 Web-Udrustning, which was the Danish nomenclature for what was essentially identical to Patt. '37 W.E. at first. The Water Bottle Carrier, was the first of three changed designs - this, the M-'49 Haversack (Paksaek) and M-'50 Basic Pouch (don't know translation!), all requested by Denmark & made by the Mills Equipment Company.