what is the proper name of this piece?

i need to order more of these but cant find them online. help please.

Try ebay and look up dripper systems and thats where I got all my bits

Except none of mine have clamps like that

Looks like a self piercing drip emitter. I just use 1/4 piercing tees.

Thanks, yeah I basically kept coming up with. Everything but what I need on eBay, and my local store just recently closed. I'm a huge drain to waste in rockwool fan,I'll post up some picsof my rooms soon since I never have. Thanks for the responses guys.

Happyhomegrower you win, the word emitter never crossed my mind when searching...got them!!!

Great news you found them

I have the same problem on ebay I can find everything but what I need xD