Chapin International G405 Feeder Hose End for Dry and Water Soluble Fertilizers, Green

Can you connect a hose to both sides? I want to attach this to a soaker house.

How many fluid ounces does this sprayer container hold ? I would to use it for a soap solution for underneath my truck .Thank you for your help.

does the spray head unscrew so you can attach it to a Rain Bird sprinkler.

Is it possible to screw on a larger container