Update: All 8 work great! They release many even bubbles for their size. The manufacturer replaced the original batch which had some issues and all work great! Great product and support - would have no hesitation in recommending them for hydroponics/aquariums. ---------- Initially most worked fine, 1 didn't bubble and some had a different resistance. The seller/manufacturer replied to my review (but it would be better to write to me as Revain doesn't show you the replies to your reviews/comments). They replaced them even though I was outside the return window when I saw the reply. Looks like they adjusted the manufacturing process and quality control before shipping to customers, so these are my air stones now!
πΏ Enhance Your Freshwater Fish Tank with Greenpro Java Fern on Driftwood Live Aquarium Plants
27 Review
Sink filter Prio New Water Start Osmos OU380 white
79 Review
Humidifier / air purifier "Fanline Aqua VE400" with an ionizer, with a capacity of 410 gr/h
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KEDSUM 330GPH Ultra Quiet Submersible Pump With High Lift And Grounded Power Cord - Ideal For Fish Tanks, Ponds, Aquariums, Statuary, Hydroponics - Includes 3 Nozzles And 1500L/H Water Flow
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Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
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π U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
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𧲠Efficient Magnetic Fish Tank Cleaner: KEDSUM Floating Clean Brush with Handle Design
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Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review