I bought two of these and they are good air line splitters. It looks like chromed metal because it's not stainless steel but non-ferrous metal as the magnets don't stick. One set had a bad check valve that would not let air through in either direction. Luckily I have spare check valves. All components fit snugly into a 1/4" ID silicone air line.
Sink filter Prio New Water Start Osmos OU380 white
79 Review
KEDSUM Quiet Rechargeable Battery-Operated Aquarium Air Pump With Dual Outlets - Perfect For Fish Tank, Outdoor Fishing, Transport, And Emergencies
28 Review
πΏ Enhance Your Freshwater Fish Tank with Greenpro Java Fern on Driftwood Live Aquarium Plants
27 Review
Humidifier / air purifier "Fanline Aqua VE400" with an ionizer, with a capacity of 410 gr/h
44 Review
Jasonwell Magnetic Aquarium Fish Tank Glass Algae Cleaner - Floating Brush (L Size)
37 Review
Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
55 Review
𧲠Efficient Magnetic Fish Tank Cleaner: KEDSUM Floating Clean Brush with Handle Design
34 Review
Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review