This fits? Model 4021n

4021n is not a recognized model number

im trying to replace american standard toilet tank top model # 735122 The 735121 is available and looks just like it so would that one work ?

They are not the same. They are different depths, the 735122 would be too small for your tank. -American Standard Tech Team

have an Amer. Standard Cadet 3 complete round front. (241417) 7 years old. Need a new lid will model 735121 fit it?

Contact American Standard and they will tell you what will fit.

Will this fit model #4370A?

No, this lid will not fit model number 4370A. The correct lid for that tank is part number, 735199-400.020 (in white). Sincerely, Your American Standard Consumer Connection Team

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735121-400.020 Cadet 3 Toilet Tank Lid, 1 Pack, White

Product ID: 771734

Details

Color
White
Brand
American
Material
Ceramic
Style
Contemporary
Shape
D-Shaped
Product Dimensions
17.37"L x

⚪Pristine white ceramic finish

📏Fits standard 12-inch rough-in tanks

🛠️Easy manual installation

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Description

⚪ Elevate your bathroom’s style with the perfect Cadet 3 tank lid—because details matter.

OPTIMAL DIMENSIONS - Precisely sized at 17.37"L x 8.68"W to cover your tank flawlessly without gaps or misalignment.
DURABLE CERAMIC BUILD - Crafted from high-quality ceramic for long-lasting strength and a sleek, contemporary look.
SEAMLESS COMPATIBILITY - Designed specifically for Cadet 3 two-piece toilets, ensuring a perfect fit every time.
EFFORTLESS INSTALLATION - Manual operation mode with clear fit guidelines means no plumber needed—upgrade your bathroom hassle-free.
TRUSTED BRAND ASSURANCE - Backed by American Standard’s limited 1-year warranty for peace of mind and reliable performance.

The American Standard 735121-400.020 Cadet 3 Toilet Tank Lid is a durable, white ceramic replacement lid designed for Cadet 3 two-piece toilets with a standard 12-inch rough-in. Measuring 17.37" by 8.68", it offers a precise fit and contemporary D-shaped style. Easy to install and backed by a 1-year limited warranty, it’s the ideal upgrade for a seamless, polished bathroom look.

Specifications

Color	White
Brand	American Standard
Material	Ceramic
Style	Contemporary
Shape	D-Shaped
Product Dimensions	17.37"L x 8.68"W
Item Weight	8.3 Pounds
Operation Mode	Manual
UPC	033056673959
Global Trade Identification Number	00033056673959
Manufacturer	American Standard
Part Number	735121-400.020
Item Weight	8.3 pounds
Item model number	735121-400.020
Is Discontinued By Manufacturer	No
Size	1 Pack
Item Package Quantity	1
Included Components	toilet seat and parts
Batteries Included?	No
Batteries Required?	No
Warranty Description	Limited 1-Year Warranty

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₩214872

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In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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