I was disappointed in the quality as it had defects in the plastic but worst of all it LEAKED!! The screw and washer that came with it doesn't seal. The original bolt is a flanged shoulder bolt with a washer. The work around I came up with is use the original bolt with the new washer and most important is to add a 1/4"id 1/2"od x 1/4" thick rubber washer used for a faucet on the inside. It also didn't have the min and max markings molded into the tank so I used perm. marker and took the measurements off the old tank. Hope it lasts half as long as the old tank (35yrs) but doubt it but it did get me up and running for now. It's all you can get since no more OEM and cheaper than a new power trim at about 350.00.