Paterson 底片沖片罐攪拌器 (2入組) SPTP109

These fit the Paterson tanks perfectly and make rotary agitation so much smoother than my old method of rocking the whole tank. The twisting motion is gentle and consistent, and having two means I can process a pair of rolls without stopping to swap parts.

Switching to these agitators made developing much easier—the non-inversion motion is so smooth, and I appreciate having a backup set for when I run multiple tanks. The fit is perfect on my Paterson reels, and they feel sturdy enough for regular use.

Bought these as spares after losing one down the drain, and the fit in my Super System 4 tank is spot on. The non-inversion agitation gives me even development without having to flip the tank, which saves my wrists on long runs. Plastic feels identical to the originals, so no complaints there.