Soda bottle cap and lid for drip irrigation

Soda bottle cap and lid for the wide part of the bottle, i.e. upside down. I used this for a drip irrigation system to ensure no contaminants enter the system and have a nice clean look. I used 2 liter soda bottles, cut the bottom part of the bottle off and glued the new cap and lid on. I spray painted the bottles black to prevent algae growth, but left a small piece open for a level indicator.

Note: bottle sizes vary and the scale may need to be adjusted.