See: http://www.allpumpsdirect.co.uk/pentax-pumps;
and also (for example):-
http://www.cheapapumps.com.au/convertible_jet_pumps.html
http://www.chinayaqin.com/pentax.htm
(in Simplified Chinese; It is a large company and has large factories as told.)
A quick search on Google Image will find many more product images of the "Pentax", here are just some of the web images:-
I actually like much the slogan of "Where There's Water There is Pentax"! I now even know why our Pentax needed to create those weather-resisted DSLR bodies and WR lenses! And I do hope that the water is not a trouble(some) one, at least not as "trouble" as me in our Pentaxland!! Lol.. ;-D As for the colourful Pentax products, e.g., those in bright red and yellow colours (see above), I yet know where the idea was originally copied from!~
Btw, the "Pentax" has their official web-pages, but which seems to have been down or for restricted access only as there is always an error shown up when trying to access:-
http://www.pentax-pumps.it/ (Italian home)
Or http://www.pentax-pumps.it/en-US/website/index.aspx (US/English page, I suppose.)
But I just wonder why this direct link for yet a Pentax pump product catalogue (in pdf) hosted at their official site does work! This officially proves the existence of the Pentax pumps on this planet at least! ;-)