Sorry quick correction the valve number for my toilet is dv-f812v21 ?

Sorry, we can't see your original part, but if your toilet is one piece with top button,the tank height would be 10"-12.8",the tank hole in 2.56"-2.95". it can be used.

Will yhis item work on horow 8737?

Don't buy this component, because while it will work, you're not going to like the results. My toilet ran like a whisper before--then I used this replacement valve kit and the toilet works--REALLY LOUD. It wakes people up in the other room (the bathroom is connected to the master bedroom). Get a better version from someplace else like Lowes or Home Despot.

Will this work on my Costco WaterRidge-c22148c toilet?

No. This is not the correct piece.

How do you secure the valve to the screw

The top half of the flush valve twists off exposing the screw and metal piece that will hold the valve down. Loosen the screw allowing you to fit the bracket into the water drain and then tighten up the screw which will tighten up the flush valve. Then twist and lock the the rest back.

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Toilet Flush Valve

Product ID: 217759070

Details

Brand
VALLVATER
Exterior Finish
Silicone
Inlet Connection Size
2.56 Inches
Inlet Connection Type
Butt Weld
Item dimensions L x W x H
8 x 3 x 8
Material
Acrylonitrile

💧dual flush water-saving tech

⏱️install in under 10 minutes

⚙️2-inch universal fit valve

€ 56.74

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚽 Upgrade your flush game—save water, save time, and flush like a pro!

PRECISION FIT GUARANTEE - Designed for tank heights 10"-14" with silicone seal ensuring leak-proof reliability every time.
DUAL FLUSH WATER EFFICIENCY - Adjustable dual flush system saves water without compromising power—eco-friendly meets performance.
UNIVERSAL 2 INCH COMPATIBILITY - Fits most one-piece toilets with a 2.56"-2.76" tank hole—perfectly tailored for your bathroom upgrade.
QUICK EFFORTLESS INSTALLATION - Get your toilet flushing like new in under 10 minutes—no plumber needed, no hassle.
DURABLE ABS STAINLESS STEEL BUILD - Premium materials ensure long-lasting performance and corrosion resistance for peace of mind.

This 2-inch toilet flush valve assembly by VALLVATER is engineered for universal compatibility with most one-piece toilets featuring a 2.56"-2.76" tank hole diameter. Featuring a dual flush water-saving mechanism and a leak-proof silicone seal, it offers efficient water use and reliable performance. Crafted from durable ABS and stainless steel, it installs quickly in under 10 minutes, making it the perfect DIY upgrade for modern, eco-conscious homes.

Specifications

ASIN	B088LNZNP7
Best Sellers Rank	#69,618 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #100 in Toilet Flush Valves
Brand	VALLVATER
Brand Name	VALLVATER
Connector Type	Butt Weld
Customer Reviews	4.4 out of 5 stars 271 Reviews
Exterior Finish	Silicone
Included Components	1 x install guide, 1 x toilet flush valve
Inlet Connection Size	2.56 Inches
Inlet Connection Type	Butt Weld
Item Dimensions	8 x 3 x 8 inches
Item dimensions L x W x H	8 x 3 x 8 inches
Manufacturer	VALLVATER
Manufacturer Part Number	THU
Material	Acrylonitrile Butadiene Styrene (ABS) , Stainless Steel
Material Type	Acrylonitrile Butadiene Styrene (ABS), Stainless Steel
Model Number	THU
Number of Pieces	1
Number of Ports	2
Outlet Connection Size	2 Inches
Outlet Connection Type	Butt Weld
Set Name	Toilet Flush Valve Set
Size	8 inch height
Specification Met	UPC, WRAS
Thread Size	2.56 inches
UPC	725766901162
Unit Count	1.0 Count
Valve Type	flush valve

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