What do they call the type of 'shielded' covers you get on anchor locker drains ?

[ean_p]

Deleted as I can print the size and shape I need to cover the floor vent in a Motorhome so as to deflect road spray....thanks anyway!

 

[colind3782]

I googled anchor locker drain cover and many came up.

 

[Caladh]

Hawse pipe

 

[Neeves]

I think what you refer to might be Clam covers

Of which there are a myriad of variants.

Simply google 'clam covers' to start with

Jonathan