The One2Flush Toilet Repair Kit brings the high quality of the One2Flush conversion valves to toilet replacement parts. The IAPMO certification to the durability of the flush valves and fill valves extends to even the smaller parts. The high-quality, 440 grade stainless steel bolts and oversize conical tank gaskets eliminate leak possibilities from the tank. The double nut feature ensures that the tank is sealed prior to attaching the bowl. The lower cushion washers aid in securing a connection to the bowl. The stainless steel wing nuts make tightening the tank to bowl eliminates the need for a wrench and the possibility of over-tightening.