Check the listing for details. SIMON Chemblend / T-2 X-Ray Developer Concentrate, 10 Gallon Mix-4010D X 1 CASE. Condition: New. Listed at 109.99 USD. T-2 DEVELOPER Replenisher concentrate - You get 2 mixings of concentrate that makes 5 gallons each =10 gallons We have been in the Xray Business for over 25 years .. T-2 Developer and H-r Simon chemicals are exactly the same chemicals .. You will receive as pictured a new case of developer . Our chemicals are stored in a controlled environment . Chemicals are restocked each month so you will be getting chemicals that were recently made . We ship fedex ground and secure the tops of each bottle with extra tape to prevent leakage .. We ship fast - most orders are received within 2 to 3 days .. In our region alot of times its only one day shipping time . Mixing instructions 3 Gallons + 5 pints - 80 ounces .. Start with 1 gallon of water then add the concentrated chemicals .. This will help on keeping the 2 parts of developer mixing ..