There are on installation instructions with the kit. It would be straight forward but the bellows I replaced did not look like the new bellows so it took a couple tries to get it right. Usually that is not a problem but these toilets are not located in a place you want to spend much time "trying" to guess installation is correct

All components fit and perform as intended. So far so good.

convenient that parts are assembled as a kit

Excellent customer service. Thank You

Excellent packaging, fast shipping, and works exactly as advertised.

Parts came in on time and fit like a glove. Vac-u-flush now works like a million.

Easy page, good inventory, fair prices

Easy to install and came in on time

they delivered the items fairly quick and every thing fit and my pump has never worked better although a good pair of rubber gloves are a must