Yes it's clear, but you can see lines from extrusion, also it's only 1/8" thin.
I wouldn't recommend it for your application.
chwkreefer (Bill) has some PVC as well, send him PM, he is in Chilliwack.
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Denis
150g SPS reef;3x250WHQI,Tunze Streams,Wavebox,Neptune Apex,fishroom in basement
,reefing since 93,SPS since 99.
TOTM June 2010