These sight glasses from Evolution Aqua allow you to see what is going on in your plumbing, making it perfect for bead filters and other self-cleaning pond filters. Instead of going to the drain pipe output, you can easily see when your water is running clear. Simply cut away a piece of the exit plumbing from your filter and glue this sight glass into place. The clear pipe allows you to see inside, while the unions make attaching quite simple.
|U40-050||5060088873700||Sight Glass, 1-1/2" Union Ends|
|U40-063||5060088873717||Sight Glass, 2" Union Ends|
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