
It wasn't as easy as the description suggests. First, the end of the check valve is a regular compression fitting, nothing special. The other end in the toilet is a snap system but it just didn't click when first attached which bothered me. Disassembled, and the second time there was a distinct click. Update May 2021: Bought again due to another leaking toilet. This time the end of the toilet definitely snapped the first time.

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