Best Toilet Flush Valves for Delta of 2025

Harry Stack Avatar
Harry Stack
Last Updated: Jan 6, 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Delta offers a wide range of toilet flush valves that are designed to meet the needs of different customers. These valves are made from high-quality materials that ensure durability and reliability. With Delta's toilet flush valves, users can enjoy a powerful and efficient flush that helps to keep their toilets clean and hygienic. These valves are easy to install and maintain, which makes them an ideal choice for homeowners and contractors alike. Delta's toilet flush valves are available in different sizes and styles, which means that users can find the perfect fit for their toilets. Whether you need a valve for a commercial or residential toilet, Delta has got you covered.

At a Glance: Our Top Picks

Delta Faucet RP70878 Flush Valve Complete Cover #TOP 1
Delta Faucet RP70878 Flush Valve Complete
ftb score rating icon 9.9
Delta European Side Mount Toilet Fill Valve by NuFlush Cover #TOP 2
Delta European Side Mount Toilet Fill Valve by NuFlush
ftb score rating icon 9.8
NuFlush Universal Delta Toilet Side Mounted Fill Valve Replacement Cover #TOP 3
NuFlush Universal Delta Toilet Side Mounted Fill Valve Replacement
ftb score rating icon 9.6

Top 6 Toilet Flush Valves for Delta

#TOP 1

Delta Faucet RP70878 Flush Valve Complete

RP70878
Delta Faucet RP70878 Flush Valve Complete Cover
Delta Faucet RP70878 Flush Valve Complete,Chrome

This toilet flush valve is designed exclusively for Delta faucets and made to original specifications. It has been rigorously tested to ensure quality performance, making it a reliable choice for your bathroom. The valve is made in China.

What We Like
Designed exclusively for Delta faucets
Made to original specifications
Rigorously tested to ensure quality performance
#TOP 2

Delta European Side Mount Toilet Fill Valve by NuFlush

606795637195
Delta European Side Mount Toilet Fill Valve by NuFlush Cover
Delta Side Mount Fill Valve with optional Braided Water Line & Bracket (Delta Side mount fill Valve Without house)

The Delta European Side Mount Toilet Fill Valve by NuFlush is a replacement valve for your Delta toilet that is easy to install inside the tank. It allows you to disconnect the valve from the 1/2 inch pipe thread and install just the float and valve to your Delta toilet. This product is useful for those looking to fix a toilet fill valve leak in Delta toilets.

What We Like
Easy to install
Can fix toilet fill valve leaks
Allows you to replace Delta fill valve with NuFlush valve
#TOP 3

NuFlush Universal Delta Toilet Side Mounted Fill Valve Replacement

12712
Multicolor
NuFlush Universal Delta Toilet Side Mounted Fill Valve Replacement Cover
Delta Toilet Side Mounted Fill Valve RP71168 Replacement By NuFlush

The NuFlush Universal Delta Toilet Side Mounted Fill Valve Replacement is a convenient and easy-to-install solution for replacing the fill valve in your toilet. Designed specifically for the C43906 and RP71168 models, this fill valve fits a 1/2 inch water connection and connects to a stainless steel braided water line. With no special tools required, you can easily install this fill valve yourself. By replacing your old fill valve with the NuFlush Universal Delta Toilet Side Mounted Fill Valve Replacement, you can ensure a proper water flow and prevent any leaks or malfunctions. This reliable and durable fill valve is a must-have for any toilet maintenance or repair.

What We Like
Easy installation
No special tools required
Prevents leaks and malfunctions
#TOP 4

European Style Delta Side Mounted Fill Valve

RP71168
European Style Delta Side Mounted Fill Valve Cover
European Style Delta Side Mounted Fill Valve by NuFlush

The European Style Delta Side Mounted Fill Valve by NuFlush is a universal fit that can replace most side mounted toilet valves. It is perfect for any side fed one piece and two piece toilets. It has a 7/8 inch female connection and 1/2 inch male connection that can be adjusted to 7-14 inches. The valve is made of durable, corrosive-resistant ABS material and can fix leaky, noisy, and weak flushing toilets. Additionally, it is easy to install and requires no special tools.

What We Like
Universal fit for most side mounted toilets
Adjustable to fit toilets with 7-14 inch connections
Durable, corrosive-resistant ABS material
Fixes leaky, noisy, and weak flushing toilets
Easy to install without special tools
#TOP 5

Delta Side Mount Fill Valve By NuFlush

RP71192
Delta Side Mount Fill Valve By NuFlush Cover
Delta Side Mount Fill Valve By NuFlush, Fits Delta RP71192

The NuFlush Side Mount Fill Valve is a convenient and efficient solution for your toilet. Designed to fit a 1/2 inch water connection, this fill valve helps to fill your toilet more quickly and quietly. No more waiting around for the tank to fill up! With its side-mounted design, it is easy to install and provides an easy fix for a leaky toilet. The NuFlush Side Mount Fill Valve by Delta is a reliable and durable option that ensures a smooth and efficient flushing experience.

What We Like
Quick and Quiet Filling
Easy Installation
Leak Fix
#TOP 6

CORINTH R&T Toilet Fill Valve

R&T
A1320
A1320
CORINTH R&T Toilet Fill Valve Cover
R&T Toilet Fill Valve, Anti Siphon Toilet Tank Replacement Kit, Universal Easy Install Toilet Parts Inside Tank

The CORINTH R&T Toilet Fill Valve, also known as the CORINTH Toilet Fill Valve, is a universal replacement kit designed to enhance your toilet's performance. With this fill valve, you can fix issues such as slow filling, noisy, leaking, and running toilets. It provides a quiet and quick tank filling, ensuring that your toilet operates smoothly. One of its standout features is its ability to save water. The fill valve delivers the right amount of water to the tank, helping you reduce your water bill while maintaining optimal performance. Installation is a breeze, thanks to the quick locking nut that allows for easy installation without the need for tools. After installation, you can easily adjust the float height to customize the water level. The CORINTH R&T Toilet Fill Valve is designed to fit most American standard toilet tanks, making it a versatile choice. Plus, it comes with a 5-year warranty, providing you with peace of mind. Upgrade your toilet's performance with the CORINTH R&T Toilet Fill Valve.

What We Like
Enhances toilet performance
Water-saving
Quick and easy installation
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How do I know what toilet flush valve I need?

Look at the flush valve drain opening at the bottom of your tank. If the opening looks about the size of a baseball or orange, you need a 2″ flapper. If the opening looks about the size of a softball or grapefruit, you need a 3″ flapper.

2. Are toilet flush valve universal?

All though there are many different types of flush valves most flush valves are interchangeable and depend on the size of the ceramic flush hole that is bored through the tank by the porcelain manufacturer.

3. How do you adjust a Delta toilet valve?

You can adjust the water level by twisting the “Tank water level adjustment screw” connected to the float. Turn Clockwise for a higher water level and Counterclockwise for a lower water level.

Editor's Notes

During our toilet flush valve for delta research, we found 24 toilet flush valve for delta products and shortlisted 6 quality products. We collected and analyzed 9,103 customer reviews through our big data system to write the toilet flush valves for delta list. We found that most customers choose toilet flush valves for delta with an average price of $19.39.

The toilet flush valves for delta are available for purchase. We have researched hundreds of brands and picked the top brands of toilet flush valves for delta, including Delta, NuFlush, R&T. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Harry Stack Avatar

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.