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Note added at 14 mins (2015-10-16 20:46:17 GMT)
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Searching the internet, "pump cans" are amazingly "un-available". And On Google images use this: "pump can fire extinguisher". I like it though - classical and simple. Do you think there's a reason they no longer 'exist'? (i.e. do people throw them away after their house burns down??)
http://www.small-cabin.com/forum/1_3148_0.html [poniżej zacytowanego tekstu znajdują się dwa zdjęcia starych hydronetek]

Tu polskie hydronetki (wodne): http://tinyurl.com/q3enoa5

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Note added at 25 mins (2015-10-16 20:57:01 GMT)
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Dla potwierdzenia:

Also look into Water Pump Cans, not the backpack model, but the stand in the corner model. There are some available in plastic which are quite reasonably priced.
http://www.small-cabin.com/forum/1_3148_0.html

Hydronetka plecakowa HPE-19/M jest wykorzystywana do gaszenia pojedynczych źródeł pożaru.
http://www.supron.pl/kategoria-hydronetki-wodne/

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Note added at 1 hr (2015-10-16 22:06:06 GMT)
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Gwoli wyjaśnienia: hydronetka to częściej "hand-pump (water) (fire) extinguisher": http://tinyurl.com/olyb5qh [w drugim i czwartym rzędzie od góry widać te same, co w pierwszym odnośniku, dotyczącym "pump cans"].