External changover switch

Hi im in the process of building a shack in my garden shed, I want to have a 2-way splitter fixed under the rafters of the lean-to (porch) which is just outside the shed door. Placing it here outside will prevent it from direct rain, but its still outside so will suffer slightly from the elements and also spiders/cobwebs ect. Im looking for a 2-way splitter so I can utilise my hwef and another in the future. Is there such a thing as an "external" splitter anyone knows of ? I would prefer not to purchase an internal one and mount it in a box. If I can find something suitable I would wrap the coax connections in amalgamating tape. Since looking at the internal splitters they look quite solid anyway without ingress holes, and was considering if I would get away with an internal in such a position. Can anyone recommend ?? Thanks

I know you say you would prefer not to mount in a box, and I don't know whether there are external ones.
But just a thought. Personally, even if they do external ones, I would make a box from something like a tupperware container at least.
Screw the base of the container to the wall.
Seal the coax into the box from the bottom side and seal where it's screwed down. Lid just pops on facing you.

Totally protected on the cheap

Thanks for response, im a novice with this sort of stuff which as got me thinking. How do coax cabling and connections hold up in the sleet and snow anyway ? For example ive ordered an external 49:1 unun (yet to arrive), while the internal gubbins are sealed in a weatherproof box, the SO239 connections are external so are they generally watertight when terminated correctly ? Final thought on a coax switch is probably not a great idea (even if its in a box) as the frost and cold would likely seize the mechanism anyway !

I'm a relative novice too.
Coax connection outside I would use self amalgamating tape.
The threads I imagine would be prone to water ingress through capillary action.

Why might I ask do you want to put your splitter outside rather than in ?

Sharpshooter wrote:

Why might I ask do you want to put your splitter outside rather than in ?

Reasoning for having the switch outside is so I dont need to have x2 coax's coming in ! The existing tiny hole through the wall is just large enough for one coax.

Self amalgamating tape is good but not that good as i have found it to weather a bit.
Silicone grease or Vaseline a bit messy but works.
Now the stuff i use now but can never remember it's name it is like a bandage with grease but if i remember i will edit this.
Edit  
Denso Tape

JimmyD wrote:

Thanks for response, im a novice with this sort of stuff which as got me thinking. How do coax cabling and connections hold up in the sleet and snow anyway ? For example ive ordered an external 49:1 unun (yet to arrive), while the internal gubbins are sealed in a weatherproof box, the SO239 connections are external so are they generally watertight when terminated correctly ? Final thought on a coax switch is probably not a great idea (even if its in a box) as the frost and cold would likely seize the mechanism anyway !

Most cheap PL259s are not waterproof.
Messi Paoloni are sealed but good idea to tape up or seal with liquid rubber.