Mars 61771 NEMA Starter, 14CUD32BA, Size O, 9-18A ENC

Hi there! Thank you for asking about the Gerber 28-990 toilet tank. No, the 21-928 bowl works with this tank. However, it is not yet available on our site. Kindly contact one of our knowledgeable customer support specialists at 435-868-4020 from 7 AM to 7 PM MST (Mon-Fri) or through support@plumbersstock.com and see if they can get it for you. You may also inquire about Expedite Shipping if you need the bowl immediately. You may view the specification sheet for your reference. To purchase, click Add to Cart and fill in the fields required. Thank you for contacting PlumbersStock. Have a nice day!

Hi! Thank you for your inquiry about the Gerber 28-990 toilet tank. Yes, this tank fits the Gerber MX-21-962 toilet bowl. To proceed with the purchase, simply click the "Add to Cart" button and fill out the required fields. Thank you for choosing PlumbersStock! Have a great day!

Hi! We highly appreciate your interest in the Gerber 28-990 toilet tank. To replace the flapper of this toilet tank, please follow the steps below:

1. Take the tank lid off of the tank.
2. Turn off the water supply.
3. Drain the water in the toilet tank.
4. Remove the old flapper. First, remove the chain or strap of the flapper from the tank lever arm. Move one of the flapper's arms out toward the post and then slide the hole at the end of the arm over the "L" portion of the post and then lift up and away from the post. Then, just do the same for the other side.
5. Clean the seal area.
6. Install a new flapper. by sliding the hole at the end of the flapper's arm down over and onto the "L" shaped post. Then, slide the arm toward the overflow tube. Then, just do the same for the other side.
7. Attach the chain or strap to the lever arm.
8. Turn the water supply back on.
9. Put the tank lid back.

We hope this information proves helpful. Thank you for trusting PlumbersStock. Have a great day!

Hi, there! Thank you for posting a query concerning the Gerber 28-990 tank. No, this tank is for the Gerber 21-928 elongated toilet bowl. We would be happy to help. But first, we need to know the model number of the old Gerber toilet that you have, so we could give the correct recommendation for the tank. Thank you for visiting PlumbersStock- your one-stop online store for your plumbing needs. Have a nice day!