Free standard shipping on every U.S. order · Free 30-day returns
New here? Take 10% off your first order with code WELCOME10
Free standard shipping on every U.S. order · Free 30-day returns
New here? Take 10% off your first order with code WELCOME10
Free standard shipping on every U.S. order · Free 30-day returns
New here? Take 10% off your first order with code WELCOME10
Free standard shipping on every U.S. order · Free 30-day returns
New here? Take 10% off your first order with code WELCOME10
Free standard shipping on every U.S. order · Free 30-day returns
New here? Take 10% off your first order with code WELCOME10
Free standard shipping on every U.S. order · Free 30-day returns
New here? Take 10% off your first order with code WELCOME10
Free standard shipping on every U.S. order · Free 30-day returns
New here? Take 10% off your first order with code WELCOME10
Free standard shipping on every U.S. order · Free 30-day returns
New here? Take 10% off your first order with code WELCOME10
Free standard shipping on every U.S. order · Free 30-day returns
New here? Take 10% off your first order with code WELCOME10
Free standard shipping on every U.S. order · Free 30-day returns
New here? Take 10% off your first order with code WELCOME10
Free standard shipping on every U.S. order · Free 30-day returns
New here? Take 10% off your first order with code WELCOME10

Orders are prepared in 1–3 business days and arrive 3–7 business days after they ship. Alaska, Hawaii, Puerto Rico and remote addresses can take longer. You get a tracking number by email as soon as your order ships.
You can return an item within 30 days of delivery, no reason needed. We email a prepaid return label; items should be unused and in their original condition. Your refund goes back to your original payment method within 10 business days of us receiving the return.
If you have a question about an item or your order, email othercenter.us@gmail.com with the product name or order number. We answer every message by email and reply within 1 business day (Monday to Friday).
TOTO THU500S is an adjustable replacement flapper for select TOTO flush-valve tanks, made with a polypropylene body and rubber sealing surface.
A replacement flapper is a tank component, so choosing one starts with matching the valve size and the existing part reference. The THU500S is made for a selection of TOTO tanks rather than every toilet tank. Its adjustable design accommodates various tanks, while the included instructions are specific to the TOTO tank model. Use the compatibility details below to identify whether this replacement matches your setup.
The TOTO THU500S is designed for selected TOTO tanks with a 3-inch flush valve. It replaces these TOTO flapper part numbers: THU138S, THU175S, THU331S, THU140S, THU299S, THU253S, THU277S, THU347S, THU275S, THU332S, THU369S, and THU499S. Compare your current TOTO flapper’s part number with this list when identifying a replacement.
The TOTO THU500S includes the flapper, a chain, and setup instructions specific to the TOTO tank model. The flapper has a polypropylene body and rubber sealing surface; the sealing surface is 3 inches. The listed water-consumption figure is 0.0.
The TOTO THU500S is adjustable for various tanks, and its included instructions provide setup guidance for the specific TOTO tank model. Use the instructions that correspond to your tank when setting up the replacement. The supplied chain is part of the flapper assembly.
The TOTO THU500S suits someone replacing a flapper in a compatible TOTO tank who can match the tank type or existing part number to the details above. It is intended for selected TOTO tanks, not as a universal replacement for all toilet tanks. Its compatibility references, adjustable design, included chain, and tank-specific instructions make it a defined replacement option for those setups.
Q: Which tanks and flapper part numbers does the TOTO THU500S fit?
A: The TOTO THU500S is made for selected TOTO tanks with 3-inch flush valves and replaces THU138S, THU175S, THU331S, THU140S, THU299S, THU253S, THU277S, THU347S, THU275S, THU332S, THU369S, and THU499S.
Q: What is included with the TOTO THU500S replacement flapper?
A: The TOTO THU500S includes the flapper, a chain, and setup instructions specific to the TOTO tank model.
Free standard shipping on every order to U.S. addresses, with no minimum. Orders are prepared in 1–3 business days and arrive 3–7 business days after they ship. Alaska, Hawaii, Puerto Rico and remote addresses can take longer. You get a tracking number by email as soon as your order ships. See shipping details.
Free returns within 30 days. You can return an item within 30 days of delivery, no reason needed. We email a prepaid return label; items should be unused and in their original condition. Your refund goes back to your original payment method within 10 business days of us receiving the return. See returns & refunds.
Damaged or wrong item? Email a photo to othercenter.us@gmail.com and we will make it right.
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