Canister Flush Valve Seal Suitable to for American Standard Toilet Parts 7301111-0070A / 7301111 0070A - Replacement Rubber Seal for Toilet, 2-Pack, Blue

Instructions: 1.Turn off the water supply. 2.Flush to drain the tank. 3.Unscrew the black nut and place aside (without disconnecting the chain). 4.Remove the O Ring from the black nut and replace with the new O Ring. 5.Remove the green top cover with the gasket. 6.Remove the old gasket from the top cover and replace with the new gasket (the light blue ring). 7.Lift the post with the bottom cover, place the top cover with the gasket on top and twist to the right until it is nested. 8.While still holding the post, screw the black nut back on until you hear two clicks and it is fit into the placeholders. Do not overtighten the nut or it may snap off. 9..Allow post to slide back into place. 10.Turn water supply back on and allow tank to refill.