Kodak Professional 定影液（可調製 1 加侖，2019 版本）

I've been using this fixer for my darkroom prints and the 2019 version mixes just as cleanly as the old one, with no residue left in the bottom of the jug. The gallon batch lasts through dozens of prints without losing strength, which saves me time mixing fresh batches.

Mixed a full gallon in about five minutes and it cleared my test strips perfectly clean in under a minute. The powder dissolved without any clumping, which was a nice surprise for a fixer this affordable.

I've been using this fixer for my darkroom prints and the 1-gallon mix is really convenient—no guesswork. The 2019 version clears film negatives fast without any staining. It's reliable stuff.