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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2-inch Toilet Flush Valves Assembly Compatible with Water Ridge One Piece Toilets Fits for TOTO THU338N Dual Flush Drain Valve Repair Part Replacement

2-inch Toilet Flush Valves Assembly Compatible with Water Ridge One Piece Toilets Fits for TOTO THU338N Dual Flush Drain Valve Repair Part Replacement

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

RM225

Duties & taxes included

In stock

Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚽 Upgrade your flush game—save water, time, and stress!

DUAL FLUSH EFFICIENCY - Adjustable water-saving flush options to cut your water bill and eco-footprint.
SWIFT DIY INSTALLATION - Get your toilet flushing like new in under 10 minutes—no plumber required.
PRECISION FIT GUARANTEE - Designed for tank heights 10"-14" with a silicone seal that prevents leaks flawlessly.
UNIVERSAL 2 INCH COMPATIBILITY - Fits most one-piece toilets with a 2.56"-2.76" tank hole—no guesswork needed.
TRUSTED TOTO THU 338 REPLACEMENT - Seamlessly compatible with TOTO THU338N and Water Ridge models for hassle-free repairs.

This 2-inch toilet flush valve assembly is a universal, dual-flush replacement part compatible with Water Ridge and TOTO THU338N one-piece toilets. Engineered for tank holes measuring 2.56"-2.76" and tank heights between 10"-14", it features a durable ABS and stainless steel build with a silicone seal to prevent leaks. Easy to install in under 10 minutes, it offers adjustable water-saving flush options, making it an eco-friendly and efficient upgrade for your bathroom.

Specifications

ASIN	B088LNZNP7
Best Sellers Rank	#64,093 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #84 in Toilet Flush Valves
Brand Name	VALLVATER
Connector Type	Butt Weld
Customer Reviews	4.4 4.4 out of 5 stars (271)
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
Manufacturer	VALLVATER
Manufacturer Part Number	THU
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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