2 Packs Replacement Cleanable Water Chamber for AirSense 11, Perfect Fit & Reliable Seal Water Tub for Durable Use, Great-Value Humidifier Tank Supplies by Everness

This new a improve water container, fit perfectly, the seals were air tight, the fill plug sealed tight no leaks ,the easy fill made water fill up a snap. This water container was better that the original equipment container. Highly recommended.

Do not purchase. Leaks, seal is not like the original, there is no hinge. This leaked onto my end table, and does not fit well in the machine. When inserted. the air leaked. Did not use and immediately returned.

This is just what I was looking for, it’s a 2 pack and fits perfectly!

It works but it should be better. It comes apart totally to empty and fill. Poor design. It is difficult to get it to snap back together with it full with water. This chamber fits very snug in the CPAP. It can be tough to get it out. It does work but just beware of these issues.

The price was excellent for two!!!! I was so surprised..

Spend the extra money and get the original replacement. This is not hinged, it's in two pieces, and worse, it is a fingernail buster to remove. Get the original replacement and you won't be sorry like me.

The top and the bottom searate and its hard to latch back on. Makes it difficult to refill.

I ordered these to have a backup when I clean one; I still have one to use if needed. The design fits seamlessly with my machine. My only issue is that I was not aware that it was not a hinge compartment, but more of a snap-on. The two little tabs on the back will snap off over time. Quality seems nice; overall, I have not had any leakage or air gaps with the machine so far.