Skip to main content
Home / Photo Printing Equipment / Darkroom Compression Tank & Solution Bottle - Extendable Anti-Oxidation Container for B&W Film Developing, Fixing & Stop Bath, 350-1100ML

Attributes

Brand -
Category Office Equipment, Supplies & Services / Photo Printing Equipment
Origin -
Material High-Density Polyethylene (HDPE)
Capacity Range 350ml to 1100ml
Compatibility 35mm and 120 Film Reels
Feature Extendable Bellows Design
Chemical Resistance Resistant to Developer, Stop Bath, and Fixer
Light Protection Complete Light-Tight Seal
Oxidation Control Anti-Oxidation Compression Mechanism
Temperature Range -10°C to 60°C
Dimensions (Collapsed) 8.5 x 8.5 x 12 cm
Weight 245 grams

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 4/5

Solid upgrade from standard tanks

Works well for both 35mm and 120 formats. The only minor issue is that cleaning the bellows folds requires a bit more attention than a standard tank, but it's worth it.

A

Anonymous

Mar 25, 2026

Rating: 5/5

No more air gaps

Finally, a tank that eliminates headspace completely. The solution stays fresh between sessions. Highly recommended for anyone developing black and white film regularly.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Essential for the eco-conscious developer

I love that this reduces oxidation. My D-76 lasts much longer now. The build quality feels robust and the markings on the side are clear and easy to read in low light.

A

Anonymous

Mar 15, 2026

Rating: 5/5

Excellent engineering

The extendable design is brilliant. It adapts perfectly to the volume of liquid needed. No spills, no oxidation, and consistent results every time.

A

Anonymous

Mar 15, 2026

Rating: 4/5

Great concept, slightly stiff at first

The bellows mechanism was a bit hard to push down initially, but after a few uses it loosened up nicely. It's a game changer for extending the life of expensive developers.

A

Anonymous

Mar 03, 2026

Rating: 5/5

Perfect for minimizing chemical waste

The compression feature works exactly as advertised. I can develop a single roll of 35mm film using significantly less developer than with my old tank. The seal is tight and no leaks occurred during agitation.

5 FAQ

Q: Is the lid interchangeable with standard Paterson tanks?

A: No, the lid features a specialized sealing mechanism required for the compression function and is not compatible with standard Paterson or Jobo tank lids.

Q: How do I clean the inside of the compression bellows?

A: We recommend rinsing immediately after use with warm water. For deep cleaning, fill the tank with a mild cleaning solution, extend and compress the bellows several times, then rinse thoroughly. Avoid abrasive brushes.

Q: What is the minimum volume of developer required for one 35mm roll?

A: Thanks to the compression feature, you can effectively develop one 35mm roll with as little as 350ml of solution, though 400ml is recommended for easier agitation.

Q: Does this come with reels included?

A: This package includes the tank and bottle only. Reels are sold separately to allow you to choose your preferred brand (stainless steel or plastic) compatible with the tank diameter.

Q: Can this tank be used with C-41 color processing chemicals?

A: While the material is chemically resistant, this tank is specifically designed for B&W processes where temperature precision and agitation styles differ. We recommend using dedicated color tanks for C-41 to ensure optimal temperature stability.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Automotive AC Refrigerant Gauge Set – R134a Pressure Meter with Dual Valve Tool for Home R22/R410 Air Conditioning Systems

Automotive AC Refrigerant Gauge Set – R134a Pressure Meter with Dual Valve Tool for Home R22/R410 Air Conditioning Systems

$329.00

Complete Collection of Taoist Talisman Art Copybooks - Zhengyi Thirty-Six Generals, Calligraphy Practice Sheets with Stroke Order and Red Tracing, Classic Taoist Calligraphy

Complete Collection of Taoist Talisman Art Copybooks - Zhengyi Thirty-Six Generals, Calligraphy Practice Sheets with Stroke Order and Red Tracing, Classic Taoist Calligraphy

$38.00

Marie's Blending Knife Replacement Head Set Sketch Blending Tools Sponge Stumps Paper Stumps for Art Students

Marie's Blending Knife Replacement Head Set Sketch Blending Tools Sponge Stumps Paper Stumps for Art Students

$4.25

French Imported Arches Watercolor Paper - Handmade 100% Cotton, 300g-850g, Medium/Rough Grain, Extra-Large Rolls and Sheets (4K, Full, Half, Quarter)

French Imported Arches Watercolor Paper - Handmade 100% Cotton, 300g-850g, Medium/Rough Grain, Extra-Large Rolls and Sheets (4K, Full, Half, Quarter)

$33.10

Commercial Countertop Food Warmer Display Case - For Fried Chicken, Burgers, Egg Tarts, Pies, Youtiao, and Shaobing

Commercial Countertop Food Warmer Display Case - For Fried Chicken, Burgers, Egg Tarts, Pies, Youtiao, and Shaobing

$720.00

Integrated Hospital Wastewater Treatment Unit Underground Integrated Sanitary System Sewage Discharge Unit Eco-Friendly Wastewater

Integrated Hospital Wastewater Treatment Unit Underground Integrated Sanitary System Sewage Discharge Unit Eco-Friendly Wastewater

$10,000.00

Double Loop Lifting Chain with Rebar Bottom Hook - Manganese Steel Sling for Heavy Duty Rigging

Double Loop Lifting Chain with Rebar Bottom Hook - Manganese Steel Sling for Heavy Duty Rigging

$29.00

Screw Press Screw Sludge Dewatering Machine Sewage Treatment Equipment Rotary Type

Screw Press Screw Sludge Dewatering Machine Sewage Treatment Equipment Rotary Type

$17,600.00

Imported INA Needle Roller Bearings: 9NA, NA 2940, 4R22, 4924, 4926, 4928, 4930-XL A

Imported INA Needle Roller Bearings: 9NA, NA 2940, 4R22, 4924, 4926, 4928, 4930-XL A

$109.00

High-Purity Nitrogen Generator for Reflow Soldering and Wave Soldering - Efficient Energy-Saving Transformer Protection for Electronics Factories

High-Purity Nitrogen Generator for Reflow Soldering and Wave Soldering - Efficient Energy-Saving Transformer Protection for Electronics Factories

$46,100.00

Baohong Watercolor Paper 300g Wood Pulp Medium Grain A3 Full Sheet, Coarse/ Fine Grain Academy Grade 4K, A2, A1, A4 Artist Paper 2K for Art Students

Baohong Watercolor Paper 300g Wood Pulp Medium Grain A3 Full Sheet, Coarse/ Fine Grain Academy Grade 4K, A2, A1, A4 Artist Paper 2K for Art Students

$3.40

Manyue Handmade Natural Soy Wax and White Beeswax for DIY Low-Temperature Scented Candles – Includes Candle Cups and Jelly Wax

Manyue Handmade Natural Soy Wax and White Beeswax for DIY Low-Temperature Scented Candles – Includes Candle Cups and Jelly Wax

$5.46

Car Tire Stone Removal Tool Hook and Rake for Cleaning Tread Debris

Car Tire Stone Removal Tool Hook and Rake for Cleaning Tread Debris

$4.53

Caiyan Blending Sticks for Oil Pastels and Sketching, Dual-Tip Soft Wax Crayon Tools for Art Students, DIY Smudging, Highlighting, and Color Mixing

Caiyan Blending Sticks for Oil Pastels and Sketching, Dual-Tip Soft Wax Crayon Tools for Art Students, DIY Smudging, Highlighting, and Color Mixing

$8.20

Aizaofang Six-Cavity Leaf Stamp Silicone Mold for DIY Handmade Soap, Approx. 108g per Bar

Aizaofang Six-Cavity Leaf Stamp Silicone Mold for DIY Handmade Soap, Approx. 108g per Bar

$16.90

Sea to Summit Outdoor Rafting Waterproof Dry Bag Storage Backpack for Clothes, Large River Waterproof Bag 420D

Sea to Summit Outdoor Rafting Waterproof Dry Bag Storage Backpack for Clothes, Large River Waterproof Bag 420D

$83.30

Natural 5A Gold Rutilated Quartz Loose Beads - DIY Crystal Jewelry Making Supplies, Round Single Beads

Natural 5A Gold Rutilated Quartz Loose Beads - DIY Crystal Jewelry Making Supplies, Round Single Beads

$2.56

Rubber Cable Raceway and Speed Bump - Outdoor Cable Protection with Movable Cover; Indoor PVC Wire Ground Crossing Protector

Rubber Cable Raceway and Speed Bump - Outdoor Cable Protection with Movable Cover; Indoor PVC Wire Ground Crossing Protector

$31.44

Manufacturer Shaftless Conveyor Uniform Transport No Backflow Customizable Sizes Two-Year Warranty

Manufacturer Shaftless Conveyor Uniform Transport No Backflow Customizable Sizes Two-Year Warranty

$7,455.00

Curved Commercial Steamed Bun Machine - Small Glass Display Cabinet for Convenience Stores, Mantou Warmer, Baozi Steamer, Corn Warmer

Curved Commercial Steamed Bun Machine - Small Glass Display Cabinet for Convenience Stores, Mantou Warmer, Baozi Steamer, Corn Warmer

$338.00

U-Shaped Rubber Sealing Strip, N-Edge Rubber Strip, Edge Wrapping Strip, Iron Sheet Decorative Strip, Rubber Edge Sealing Strip

U-Shaped Rubber Sealing Strip, N-Edge Rubber Strip, Edge Wrapping Strip, Iron Sheet Decorative Strip, Rubber Edge Sealing Strip

$102.00

Rongbaozhai Calligraphy Felt Mat - Creative Printed Desk Pad for Brush Writing and Chinese Painting

Rongbaozhai Calligraphy Felt Mat - Creative Printed Desk Pad for Brush Writing and Chinese Painting

$14.20

Car Tire Stone Hook, Multi-Function Rust-Resistant Tool for Removing Stones, Picking, and Scraping Tire Debris

Car Tire Stone Hook, Multi-Function Rust-Resistant Tool for Removing Stones, Picking, and Scraping Tire Debris

$8.33

Hanmo Brocade Wrist Rest Traditional Four Treasures Study Gourd-Shaped Arm Pad Calligraphy Hand Pillow Artistic Fresh Wrist Rest

Hanmo Brocade Wrist Rest Traditional Four Treasures Study Gourd-Shaped Arm Pad Calligraphy Hand Pillow Artistic Fresh Wrist Rest

$9.10

West Coast Chicano Script Art, Glowing Decorative Painting for Shop Opening Gifts and Living Room Background Walls

West Coast Chicano Script Art, Glowing Decorative Painting for Shop Opening Gifts and Living Room Background Walls

$430.00

G80 Heavy Duty Chain SHQ - 2m/6m/8m/10m Short Chains for Manual Chain Hoists

G80 Heavy Duty Chain SHQ - 2m/6m/8m/10m Short Chains for Manual Chain Hoists

$8.51

Commercial Food Warmer Small Heating Thermostat Display Cabinet Countertop Chestnut Egg Tart Bread Glass Cooked Food Cabinet

Commercial Food Warmer Small Heating Thermostat Display Cabinet Countertop Chestnut Egg Tart Bread Glass Cooked Food Cabinet

$188.00

Eye-Protection Highlighter Pens for Elementary Students - Colored Markers for Key Points, Note-Taking for Middle Schoolers, Journaling Pens

Eye-Protection Highlighter Pens for Elementary Students - Colored Markers for Key Points, Note-Taking for Middle Schoolers, Journaling Pens

$1.51

Play Instantly! Steel Tongue Drum Starter Kit with Smart Practice App and Full Accessories - Perfect for Personal Use or Gifting

Play Instantly! Steel Tongue Drum Starter Kit with Smart Practice App and Full Accessories - Perfect for Personal Use or Gifting

$338.00

Rubber Cable Protection Ramp and Wire Channel Cover for Outdoor Ground Crossing

Rubber Cable Protection Ramp and Wire Channel Cover for Outdoor Ground Crossing

$15.05