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What are the benefits of a "True Union" Ball Valve
I see these online, but can not figure out what is so special about them. I can see that they are smaller than using 2 Unions and a valve, but other than that, whats so special.
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55 Gal FOWLR
105 lbs Live rock from LR.com
2 Yellow Tail Damsels
2 Green Chromis
1 Emerald Crab
3 Peppermint Shrimp
4 Scarlet Hermit Crabs
1 Blue Knuckle Hermit Crab
1 Large Turbo Snail
Hitchhickers: 3 Purple sea urchins, lots of rock crabs, pistol shrimp, brittle stars, snails, worms, etc.
and aiptasia, aiptasia, aiptasia (it was free $$)
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