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" Toilet Flush Valves Assembly Compatible with Water Ridge 1-Piece Toilets

2" Toilet Flush Valves Assembly Compatible with Water Ridge 1-Piece Toilets

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" universal flush valve size

€ 73.21

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚽 Upgrade your flush game—save water, save time, flush smarter!

QUICK INSTALL DESIGN - Get your toilet flushing like new in 10 minutes or less—no plumber needed.
UNIVERSAL 2 FITMENT - Seamlessly compatible with most 2.56"–2.76" toilet tank holes for hassle-free upgrades.
DUAL FLUSH EFFICIENCY - Adjustable water-saving flush options to cut water waste without sacrificing performance.
TRUSTED COMPATIBILITY - Perfect replacement for TOTO THU338 and Water Ridge one-piece toilets, ensuring reliable performance.
PRECISION SEAL TECHNOLOGY - Silicone seal ensures leak-proof operation, protecting your bathroom from drips and damage.

This 2" Toilet Flush Valve Assembly by VALLVATER is a universal, dual-flush replacement part designed for 2.56"–2.76" tank holes in one-piece toilets like Water Ridge and TOTO THU338 models. Crafted from durable ABS and stainless steel with a silicone seal, it offers leak-proof performance and water-saving flush options. Easy to install in under 10 minutes, it’s the perfect DIY upgrade to restore your toilet’s efficiency and reduce water waste.

Specifications

ASIN	B088LNZNP7
Best Sellers Rank	#63,957 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #88 in Toilet Flush Valves
Brand Name	VALLVATER
Connector Type	Butt Weld
Customer Reviews	4.4 4.4 out of 5 stars (280)
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 Highlight	Replacement THU338 Dual Flush Drain Valve Repair Part for Toto Aquia Toilet One Piece Model - #MS654204MF or #MS654114MF
Manufacturer	VALLVATER
Manufacturer Part Number	THU
Material Type	Acrylonitrile Butadiene Styrene (ABS), Stainless Steel
Model Number	THU
Number of Items	1
Number of Packs	1
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 Count
Valve Type	flush valve

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€ 73.21

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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