You don't need those. Just add more drippers. I haven't had a single dripper clog since I added one of theseAh. I'm North of the 49th so it's dot ca.
Its more in cad and there's a shipping fee.
There's an online hydro place that carries a several of the brand's hardware. But pricy shipping unless you buy minimum.
I could buy other things I will need but that's business that I don't give the local shop. They're great guys who go back to before BC Bud was a thing and I'd like to support them.
I even get multiple grows out of drippers with it. Using floraflex drippers and nutes



ppp