Inflation adapter for diverse airfilled products like airmats, kites, airtents and boats.

Fits onto Exped's Widget pump (https://www.exped.com/en/products/accessories/widget) as well as other bajonet sockts pumps.

Prusa

i3 MK3

Yes

Yes

TPU is more resistant to temperature changes and UV exposure, in general
more longlasting and sticks better to the valve whilst inflating. Chose Shore A hardness of about 80.