
If you're looking for a straightforward toilet fill valve and flapper kit that’s easy to install and effectively solves running toilet problems while improving flush strength, the Fluidmaster K-400H-039 is a reliable choice. Just be sure to measure your flush valve opening beforehand and be aware the included tube might need swapping if it interferes with your toilet’s flush lever. For those who want a super long-lasting solution or faster refill speeds, consider evaluating other premium models, but for solid value and performance, this kit hits the mark.
About this review: We pulled together findings from professional reviews and hundreds of user reviews, and cross-referenced them with ShopSavvy's pricing data from 39 retailers to give you the short version.
Download ShopSavvy AppCompare prices for anything in real-time, set price alerts, watch for deals by keyword, and much more
Install ShopSavvy Browser ExtensionCompare and track prices automatically while you shop online at thousands of websites.
Get the latest news, and updates on ShopSavvy. You'll be glad you did!