I use the same idea with amber 4 Oz bottles. The caps I selected have a nipple in them to displace the few drops of Xtol at sealing. I bought mine from US Plastics. They actually hold about 4-1/2 Oz when filled so a bottle will deliver 9 Oz of 1:2, just right for 4, 4X5 negs (80 sq ") at a time.
Originally Posted by Sal Santamaura