Teardrops n Tiny Travel Trailers

Well Memorial day weekend has drug on for me, lost 2 and three within a month
Inherited these 2 precious little thing's, & I need to find room for in the trailer for them when I get back to it.
The pump does say, Plumbing accessories for Recreational products.
I used a similar one years ago for a pond, and found fittings in a suitable Isle.