Hang On Overflow Box Standpipe Silencer 1" for hang-on tank overflows. Model CPR, Eshopps, and Marine Life with 1" bulkhead. Just install Silencer in your 1" bulkhead overflow and listen. You will be amazed at the difference in noise level.
Eliminate the gurgling noise associated with water flowing into a standpipe or bulkhead.
Eliminate the waterfall effect noise of water entering the overflow by optimizing the height of the pipe to your tank
Designed to prevent the pipe from getting clogged by small creatures.
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