Thanks guys for the comments here is some of the answers to the ?s
All of the pipe and fittins ars 1/2 inch , the pipe is electrical 1/2 inch schedule 40 and the fittings are water pipe fittins
snap T's 7 x .49 = 3.43
1/2 schedule 40 electrical 3 x .95 = 2.85
45 degree couplin 7 x .51 = 3.57
2 inch cap 1 x 1.25 - 1.25
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11.10 per tree
PS you could use a larger t on the base and then put a screw in it to hold it in place
if you wanted to not use the snap t
PSS these tree,s are 3 ft tall you could adjust the size as needed