5Pcs 2in Air Stone Aerator Diffuser with 16.4 Feet Airline Tubing and 5pcs Check Valves for Aquarium Fish Tank Air Pump Accessories and Hydroponics Systems

I only gave a 4 star because some of the plastic water stoppers (sorry don't know the right term) didn't work, they wouldn't allow air through. I got enough good ones for what I needed. Good price.

Awesome

Good buy

Perfect

Just air stone's and check valves not much to say here

Quality holds up well and I can't beat the price to have a few extras in my aquarium tool kit. I use this for freshwater and brackish tanks. My fish love playing with the bubbles.