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Simple, straightforward and low shipping rates for these toilet seats.



Replacement Toilet Seats

For Case


PlumbingSupply.com stocks more for one-piece Case toilet seats than anyone else on the Internet!

Case 1000 and 1100 toilet seats
New quality seats for old antique Case one-piece 1000 and 3000 toilets
with quality hinges

New Toilet Seats for Case One-Piece Toilets

Fits Case 1000 and 3000 One-Piece Toilets
Heavy duty, durable solid plastic toilet seat
w/ chrome metal hinges, 7" Center-to-Center

click here for dimensions
#1000 / 3000 - Round Front - white with chrome hinges $108.55

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Case 1100 elongated toilet seat for one piece Case toilets

New seats that fit extended/elongated Case #1100 One-Piece Toilets
Heavy duty, durable solid plastic toilet seat
w/ chrome metal hinges, 7" Center-to-Center

click here for dimensions
#1100 - Elongated Front - white with chrome hinges $133.87

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Case one-piece toilets were discontinued over 50 years ago and yet Case seats, lids and parts are still available from PlumbingSupply.com

to most common Case one-piece toilet parts

Note: For sanitary/hygienic reasons, toilet seats may not be returned.

Please note that these quality Case toilet seats only fit the Case one-piece toilets. They are very unique as they attach horizontally through and into the toilet tank and not down vertically through the toilet bowl which is most common on todays toilets.

to Case one-piece toilets replacement toilet tank lids

to the history of Case toilets

Always make sure to keep the mounting bolts tight on a toilet seat. If a toilet seat is wobbling at all, do not use it until it gets fixed.



Frequently Asked Questions

Q. "Why are toilet seats non-returnable?"
A. It is very important for us to be able to promise a brand-new, unused seat to each customer, and if we were to allow returns of toilet seats we simply would not be able to make that promise to every customer. That being said, we strongly recommend checking the color and size of the seat received before removing from the bag to make sure your seat is correct, as for hygiene reasons we cannot allow the return of toilet seats.

Q. "When I received my toilet seat, the manufacturer's box was not sealed and had already been opened. Did you send me a seat that was returned to you by a previous customer?"
A. The seat you received was brand new and unused by anyone before you. When we receive a shipment of seats from our supplier into our warehouse, their boxes are often opened for inspection to make sure the seats are not damaged; we also inspect the seats before we ship them to you, to make sure they're correct and in good condition.



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