Patterson 2 Reel Developing Tank by shotonfilm $39.95 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Patterson Universal Two 35mm Reel Tank. This tank supports two at a time developing for 35mm film, or a single 120 Film Roll. Contains two reels. Our favorite system for at-home black and white film development.
