I spent ages designing a funnel type thing to do this, it made a mess and I lost a lot of hair! This fevice is great and does a good job at filling a camelbak. You may need to hold it onto the tap but filling from a 2 ltr bottle is a doddle. Great kit.

Refills the bladder or bottle without disconnecting the system. Excellent.

First off, I am not tactical. But I am practical. The Source Tactical line is very well made. Their bladders are tough, antimicrobial and just work. I've tried so many brands and all of the cheaper ones have been mistakes. Similarly priced ones have held up. BUT! They can't be filled while in a hydropack, pack or pouch. Enter this product.You pop it on where the mouthpiece goes and attach it to a sink, hose end, or for me, water bottle and fill your water bladder while still in your pack. Sounds like no big deal. How hard is it to take your water bladder out of the pack, to unthread the hose through the shoulder strap etc., well, not really that hard. I am all about removing friction and setting up faster, easier systems, so long as I don't compromise utility etc. And this works perfect for that.I have yet to use this for a long backpack/ruck, but that is where the value will shine extra. No need to take the pack off even, just refill on the go. Or pack off, but not take bladder out to refill... huge time and hassle savings.Note - when the bladder gets full, the accordion grooves on this expand and you need to stop filling. Not a problem for gravity feed from a bottle, but pressure feed from a tap and it will start to leak as the water needs to go somewhere.

Funciona, buen calidad

Esta genial para no sacar la bolsa de agua de la mochila durante el trayecto, simpelmente se conecta en la boquilla y viertes el liquido desde una botella hasta dentro de la boolsa de hidratacion!