UpBright 9V AC/DC Adapter Compatible with Kohler Touchless Malleco Faucet K-R31498-NA K-R31498 R31498 R31498-NA R77748 K-R77748-SD K-R77748 R77748-SD-VS K-R77748-SD-BL Power Supply for 6 AA Batteries

After reading some of the reviews I was a little hesitant in ordering. Several folks said the connector to the Kohler faucet did not match up very well. I ordered and found it to be a perfect match and works great.

Plug will not work. It is broken or missing the part that allows for a snug fit into the other end of wire. Tried to plug in anyway and faucet wouldn’t work. Bummer sending back.These things happen and I was issued a full refund and am a satisfied customer.

Might work well, but the plug doesn't fit into the Kohler Malleco plug, which has a plastic sheath that blocks it from attaching. I didn't feel like cutting the plastic to fit so asked for a refund. Didn't get a response.

Works great for my faucet. Not that complicated, it's just a 9V 3mA power supply. Seems like the negative reviews are fake to steer you into overpaying for the Kohler brand.

I bought this 6 FT AC power supply for Touchless Malleco faucet K-R31498-NA so that I don't have to change the batteries too often. This poweradapter fitted and worked as designed.

This is not an exact replacement for the Kohler Touchless Malleco faucet K-R31498-NA Power Supply. The male end of the power supply cord that connects to the female connection on the control box is not stepped like the actual K-R31498-NA and therefore does not make the tight connection and seal like the factory original. I was able to adapt it by cutting back a quarter inch of the plastic on the male plug and then installed two small O rings to make a proper seal and insure a snug fit. See photos.

I purchased this product so that I would not have to change batteries on my touch less Kohler faucet from COSTCO. I read the reviews so I was aware I might have to modify the terminal by removing about 2 mm of rubber tip. It would not work so I removed the rubber from the terminal and then it worked fine. Before modification I compared the two terminals and indeed the terminal from the battery power was slightly more exposed than the UpBright terminal. So I am glad it works and I did save at least $10 if I had purchased Kohler adapter UpBright needs to fix their product.

Great replacement for OEM power adapter. Work fine of past 6 months