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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
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Description
Fluidmaster Universal Toilet fill valve and 2-in flapper kitThe Fluidmaster K 400H 039 PerforMAX High Performance Toilet Fill Valve and Adjustable 2 in. Flapper Kit offers the top choice to fix your toilets performance and saving water. This universal design, is made for 2 in. flush valve toilets including Kohler, Toto, American Standard and more. Quickly solve common toilet problems like noisy, leaky or running toilets. Featuring the high performance PerforMAX Toilet Fill Valve the quietest, most powerful
The Fluidmaster K-400H-039 PerforMAX High Performance Toilet Fill Valve and Adjustable 2 in. Flapper Kit offers the top choice to fix your toilet’s performance and saving water. This universal design, is made for 2 in. flush valve toilets including Kohler, Toto, American Standard and more. Quickly solve common toilet problems like noisy, leaky or running toilets. Featuring the high performance PerforMAX Toilet Fill Valve the quietest, most powerful fill valve on the market. Now featuring both tank and bowl water level adjustment dials, to quickly customize your water use. The EZ-Twist height adjusts from 10” to 15” to fit most tanks for a fast install. Also, featuring the PerforMAX Water-Saving 2 in. Toilet Flapper, which offers a dial adjustment to set your water use per flush. The solid frame ensures a secure seal, while the hard water resistant materials, and built-in Microban technology fight bacteria and breakdown. Upgrade your toilets fill and flush, and save with Fluidmaster’s PerforMAX Fill Valve and Flapper Repair Kit.
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The PerforMAX fill valve and 2 in. Flapper Kit is the premium solution to make your 2 in. flush valve toilet run like new
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PerforMAX toilet fill valve offers high performance with adjustable tank and bowl water for full water control
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Fast and Easy to Install
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PerforMAX Water-Saving Toilet Flapper included to save water use per flush
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Adjustable fill valve height to fit more tanks
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Maximize flush performance and water savings
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Corrosion resistant flapper
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Solid frame flapper eliminates twisting and ghost flushing
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7 Year warranty
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Helps clear my sinuses
Color: White, Color: White
As someone who would constantly wake up in the middle of the night with a cough and stuffy nose, I have had this air purifier for 1 day and have already slept through the night with completely clear sinuses! It is almost noon the next day and I have not had to blow my nose or clear my throat once, which is unheard of for me. My stuffy apartment smells better too. I haven’t even dusted or vacuumed yet and it is already making a huge difference in my daily life, I can’t wait to do a deep clean on top of it! It really works and is 100% worth the money!
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Reviewed in the United States on May 19, 2026
★★★★★ 5
No complaints
Color: White
I have purchased three of these air purifiers. We keep one in each occupied bedroom and one in the living area. I appreciate that they don’t take up much space. They are easy to operate and are aesthetically pleasing enough. We purchased to help with our dog’s dander and any loose mold spores that may be in the air. I put one in our laundry room for awhile because of the musty smell that hung in the air. The next time I walked in there I could feel the difference. It smelled lighter and felt drier than before. The first two I began using at the same time, and I’ve had to change one filter so far. It lasted approximately 2 months. It was dirty when I removed it which indicates it is functioning properly. They are also pretty quiet. I can sleep with it on low next to my head without issue, but it does have a sleep mode. Overall, I have no complaints and would recommend for an affordable air purifier.
Update: The third one we purchased separately from the first two. When the unit is ON but not RUNNING it has this incredibly high pitched frequency that is similar to your ears ringing. I haven’t noticed any issues with its functionality, but I definitely make sure I unplug it when not in use.
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Reviewed in the United States on April 13, 2026
★★★★★ 4
Great value for $$$
Color: White
This is a great air purifier! We had some work done in our master bathroom & really wished we would have purchased this sooner! We lived in the house during the remodel, but so much junk is circulated in the air since demolition of our 60 year old home! Both my husband & I have had respiratory infections! Glad this helped clear the air so we could sleep better at
Night!!
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Smaller & more efficient
Color: White
Smaller than my 6 year old one and so quiet!
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Small and great performance
Color: White
Great little air purifier!!!
I have a large one and needed a small one for adjacent room!!
Great team work !!!
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Reviewed in the United States on May 31, 2026
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