if you go to your local home improvement store (Canadian Tire/ Home Depot/ Lowes/ etc)
all you need is an 1/8" to 1/8" pipe nipple. They should have a bunch of different sizes in the plumbing section (I'd bring an ASA with me just to make sure I got the correct threading)
it should look like this:
1/8 NPT Male - Male Nipple [FITT013] - $3.00 : Palmers Pursuit Shop!, Where Custom Still Means Something