Koaxialrelais -- here and here.

Koaxialrelais -- here and here.

Thanks but not available in the UK so not much good

It depends on what you are doing on 70cm.
If it's SSB using a high gain yagi etc. and you are chasing DX then there is no point in throwing away power, and receive signal, so hardline, or Ecoflex 10, would be the choice.

For non critical use then RG213 would do.

You just need to make sure it is genuine, full spec, RG213 or UR67 as there has been a lot of sub-standard co-ax on the market since CB became popular.

The type of relay depends on how much power you are running.
Relay
Also available with N connectors and suitable for mid power levels.
This is obviously new but you should find something similar second hand or surplus.

Toyo Tsusho, Radiall and Dow Key are all good brands.

Cheers

Tony

I use Ecoflex 15 straight from shack to mast head pre-amps (about 50ft) on 13/23cm and for the runs that need to be flexible up the versatower on 6/4/2M and 70cm.
The runs from the shack to the tower base are in 1/2" Cu2Y hardline.

For short runs when out portable I use Ecoflex 10 up to 70cm.

Cheers

Tony