Kaiser Accordion Bottle - 900-2000ml

The accordion walls are genius—pressing out the air is so much easier than trying to squeeze a rigid bottle. I can already see it keeping my developer fresh much longer.

Finally, a chemical bottle that actually gets the air out - I can collapse the accordion walls until the liquid reaches the very top, and the black plastic feels sturdy enough to last years in the darkroom.

I wish the markings were a bit easier to read in low light, but the accordion design really does keep my developer fresh for weeks. It’s a solid upgrade from the glass bottles I was using before.