This tea brewer is a simple DIY that I copied off of Tim Wilson. http://microbeorganics.com/ I had all the parts already. To buy the parts probably looking at around $24 minus the air pump. Took me about 15 minutes to put together. Parts list: 2-90° elbows 2- Tees 1- threaded/slip reducer 1-street 90° elbow threaded 1-hose barb adapter 1-piece of hose for air pump 1-piece of pipe. 1-air pump. Glue I cut the pipe into 3 pieces. 1 is for the riser and 2 for connecting the 90° elbows and tees. I glued the reducing bushing and tees together. Did not glue the riser and elbows, as I need to take it apart to clean.