Roots organic coco bricks?

anyone use these. I’ve usually use Botanicare but can’t get them was wanting to see if they are as clean. Tried cocotek way too salty. Botanicare bricks are around 200 ppm when expanded cocotek was a 1000. Was trying to see if roots is close to Botanicare

Hmm... I use cocotek.

Never any issues for the past 6 or 7 years.