Where to purchase humane rat tap in Perth W.A

[Chickadan]

Hi, needing to deal with a few prob rats. Not prepared to bait so looking for alternative options. Thinking a tap of sorts(did down type) or even a gas system purchased online if works?
If shut down trap best are there any actual stores could purchase from in Perth.
Thought of killing makes me feel bit ill & will have to do so myself so easiest female friendly friendly approach appreciated. Thanks

 

[Chickadan]

Sorry for typos, sending via mob. First option mean't to say "thinking a trap of sorts, shut down door type".