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Materials List {~$3.25
per tube}:
1 each 48" protective
cover for fluorescent tubes {$1.98}
4 each 1 1/4" pvc
end caps {$0.56 ea=$2.24}
2 each 1/4" barbs
{$0.15 ea=$0.30}
2 each air stones
{$0.50+$1.00}
10 feet of 1/4" tubing
{$0.10 per ft=$1.00}
Apply air from your
compressor or an aquarium pump and you have bubbling tubes for your mad
scientist lab. An air stone will give you the option of the smaller
bubbles shown in the picture above.