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Material
Acetal, Polypropylene
Brand
Next by Danco
Item Dimensions LxWxH
10.5 x 3 x 3 inches
Certification
(unset)

  • WATER-SAVING toilet fill valve with built-in mini-valve that adjusts tank refill water level
  • DETECTS LEAKS: The water-saving toilet fill valve sounds an audible alert when a leak is detected making you aware of any potential issues that must be addressed
  • CLEANING JETS: Strong jets stir up debris in toilet tank in order rush any dirt down the drain with every flush keeping your toilet tank cleaner
  • EASY ADJUSTMENTS: Shuts off water inside tank making repairs a snap, refills quickly, and has an adjustable height of 11 inches to 13.8 inches
  • EASY INSTALLATION: Smart Nut helps with easy installation without tools in most standard toiletes
  • Detects leaks
  • Cleans the tank
  • Installs easily without tools
  • Calibrates your toilet for full flush efficiency

Description

Product Description

Danco is one of the largest plumbing repair, replacement, and remodel suppliers in the home improvement industry focused largely on empowering ''Do-It-Yourself'' consumers with plumbing solutions that are as practical as they are affordable, giving your home a more fresh appeal and renewed elegance. We provide stylish design-oriented innovative home solutions that are user-friendly to support and encourage customers to tackle home improvement tasks on their own - without the heavy price tag of professional services. The HC660 HydroClean Toilet Fill Valve kit solves the two biggest reasons for water loss in toilets; miscalibration and leaks. It easily calibrates to adjust the exact amount of water needed in the tank, refills quickly, and jets clean the tank. A unique feature is the leak detection and signals when a leak is found. It is designed to fit most standard toilets and the height can be adjusted from 11 inch to 13.8 inch.The HC660 installs easily without tools. Order yours today!

From the Manufacturer

Next by Danco exemplifies a line of state-of-the-art plumbing repair parts that empowers the DIYer and Professional to do more than just solve the problem. Don’t just repair it. Improve it.

Product information Pack of 1

    Additional Information

  • ASIN: B000L87RKC
  • Customer Reviews: 4.5 out of 5 stars 1,460Reviews
  • Best Sellers Rank:
    #18,383 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
    #32 in Toilet Flush Valves
    #2,179 in Kitchen & Bath Fixtures
  • Date First Available: January 16, 2007
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Product guides and documents

Product Documentation (PDF)
User Manual (PDF)
Installation Manual (PDF)
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Customer Questions

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Q: how does it detect leaks?

A: All fill valves have the "audible" leak detection feature. Fluidmaster has a fill valve th…

Not so Average Joe | 5 years ago

Q: How does this device clean the toilet?

A: It doesn''t clean the toilet, it cleans the inside of the tank. It does this by diverting …

R. Murray | 7 years ago

Q: I cannot adjust the height. I think it is not correct

A: I was also stumped by this at first. The trick is to push the little locking tab near the …

T. Hoff | 6 years ago

Q: I have a toilet tank that only has 6 1/2 inches of water when full. Will this shutoff va…

A: The water level in the tank should be an inch lower than the top of the overflow tube. If …

DR Palmer | 6 years ago

Customer reviews

4.5 out of 54.5 out of 5
1,460 global ratings

Reviews with videos

Reviews with images

Top reviews from the United States

JP
5.0 out of 5 starsVerified Purchase
Wow XD
Reviewed in the United States on March 19, 2020
Size: Pack of 1
So it''s been probably about a decade since I''ve had to buy a pooper valve because at one point I bought a bunch of valves, and it took me that long to go through them. Well I must say, I didn''t realize toilet valve technology had advanced so far in those 10 years. This... See more
So it''s been probably about a decade since I''ve had to buy a pooper valve because at one point I bought a bunch of valves, and it took me that long to go through them. Well I must say, I didn''t realize toilet valve technology had advanced so far in those 10 years. This valve has ...

1. A torque limiting device on the big nylon nut that keeps you from over-compressing the gasket
2. An adjustable flow for the bowl filling supply tube (in the past, I''ve used assortments of zip ties to limit the flow from some valves that insist on overfilling the bowl)
3. A "stirring" hose output from the bottom of the valve body that keeps sediment from building up in the tank (much like any new water heater has these days) ... there''s also a little puff of air bubbles from around the base of the valve everytime you flush that has a stirring effect

And ... you get all this for $10. Is it time for me to buy another box of toilet valves? XD
8 people found this helpful
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JAK
5.0 out of 5 starsVerified Purchase
Perfect fit and funtionality
Reviewed in the United States on January 22, 2019
Size: Pack of 1
This Hydroclean 660 was installed in my 10 year old Costco Water Ridge two flush buttons toilet. At first it did not appear to fit correctly as to where the blue jet steam tubing connects to the "J" connector because of configuration of tank. BUT, after you install it,... See more
This Hydroclean 660 was installed in my 10 year old Costco Water Ridge two flush buttons toilet. At first it did not appear to fit correctly as to where the blue jet steam tubing connects to the "J" connector because of configuration of tank. BUT, after you install it, it fit and operates perfectly. All I had to do was cut to shorten the blue jet tubing. I was not able to remove the old overflow tubing holder, so I just reused it as to hold the new refill tube as it held it securely.

It took about an hour and half to install. This includes the prep work of removal of old valve, cleaning out the tank, getting tools ready and testing. However easy to install.

A few tips: Read instructions. Do a dry run fit and get familiar with how to adjust the height of the valve BEFORE installing in tank. Measure twice if need to cut the blue jet tubing. Keep the C L Line on unit just over an inch+ from the top of over flow, this keeps the fine adjustment screw in the middle. Mark and test tank bowl water height, you may be surprised if you have been over filling in the past and wasting water. Go slow, take your time and you will be fine.
13 people found this helpful
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E. Walker
3.0 out of 5 starsVerified Purchase
Replaced old toilet filler. Tank floor is clean. A bit loud when flushing. Had to use 2 mops.
Reviewed in the United States on October 23, 2020
Size: Pack of 1
After I installed this fill valve, i tested for leaks. I could not get the supply valve (new) to tighten enough to make a watertight seal. I had to remove the " smart nut" as well as the inner rubber seal and replace with other ones i had in my tool box. I was finally able... See more
After I installed this fill valve, i tested for leaks. I could not get the supply valve (new) to tighten enough to make a watertight seal. I had to remove the " smart nut" as well as the inner rubber seal and replace with other ones i had in my tool box. I was finally able to get a seal. I turned on the water and the cleaning jets started to whip around, spraying water all over the room (think Water Weasel). I held the sprayed down until the water level was high enough to cover it and let it go. It was better, but still moved and was very loud. I flushed to test again and water sprayed all over again. I turned the supply valve down and re-tested. Water then leaked out of the tank lid. I tried to see if the nozzle head would adjusted it came off and was swept into the bowl. I was able to retrieve it (yuk) and, finally, placed a clean mayo jar in the tank, on top of the spray head to get it to stop spraying water everywhere. I do admit, it cleans the tank, just wish it would stay put. Hopefully the jar will stay "on top of things".
4 people found this helpful
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PENdragon
4.0 out of 5 starsVerified Purchase
Flush, fill, and sweep the tank too
Reviewed in the United States on November 6, 2020
Size: Pack of 1
So far so good, about a week in and doing a great job. The tank sediment sweep feature is a win, no more gunk at the bottom of the tank! Couple of quick notes to the designers, please move the outlet on the fill valve where this sweeper hose attaches about 15... See more
So far so good, about a week in and doing a great job. The tank sediment sweep feature is a win, no more gunk at the bottom of the tank!

Couple of quick notes to the designers, please move the outlet on the fill valve where this sweeper hose attaches about 15 degrees clockwise so it lines up more towards the float. When installing in a small tank balancing out this attachment point with the adjustment for the float and NOT kinking the hose or binding the float against the flush lever is challenging. Also, you should recommend to wipe the inside bottom of the tank around the mounting hole before inserting the valve. Any sediment or other gunk around that hole will prevent a good seal.

Other than that, install was 15 min max with no more than a pair of scissors to trim the length of the sweeper hose. I suspect every toilet in my house will feature one of these soon.
2 people found this helpful
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SoCalReviews
5.0 out of 5 starsVerified Purchase
I really like the features of this toilet fill valve
Reviewed in the United States on February 26, 2016
Size: Pack of 1
I really like the features of this toilet fill valve. The bowl overflow adjustment is a nice water saving feature. The cleaning tube works well to keep water scum from accumulating in the toilet tank and on toilet flappers. The "click" locking mechanism ensures you... See more
I really like the features of this toilet fill valve. The bowl overflow adjustment is a nice water saving feature. The cleaning tube works well to keep water scum from accumulating in the toilet tank and on toilet flappers. The "click" locking mechanism ensures you don''t over turn the locking nut when you screw this fill valve into the toilet tank.

I have installed several of these fill valves in different toilets in the last five years and never had a problem with them. It seems I have had less issues with this valve than with other brands in the past. The first one of these HC660 fill valves I installed over five years ago still works as a normal fill valve but I did replace it recently because the special cleaning flow tube that is unique to this fill valve seemed to stop allowing water to flow for its special tank cleaning tube. However the valve continued to work to fill the tank just fine and I could have left it as it was working. My current residence has sixty year old steel pipes that tend to allow chunks of rust to break off and clog water valves. In older homes I have seen many fill valves including the popular competing brands run continuously when the valve disc became old, clogged or broke. You can turn off the water at the wall valve and then in the tank partially disassemble these float type fill valves without completely removing them from the tank... in order to clean the disc valve ... Look for the online videos on YouTube or other sites how to do this. (I noticed that this HC660 fill valve comes with a small locking tab you can see that is built into in back and very top of the valve. It may need to be twisted off or snapped off and pull out to be removed before the top assembly can be twisted off to get to the disc valve seal for cleaning. See the HydroClean web site for more information.)

Note: One thing I noticed about the new HydroClean valves is they come shipped with the float adjustment turned all the way clockwise (float all the way to the top) which is a position where the float can not engage the disc to shut off. With a screwdriver or by hand simply rotate the float adjustment an adequate number of turns counterclockwise (lowering the float height) so that when the valve disc does settle and seat the float has enough space to float up to close the valve. A simple adjustment of the float height to make sure it is not at maximum height and has plenty of room to float higher remedies this. Note that this is the float height adjustment that I am referring to and NOT the tube height adjustment.
18 people found this helpful
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AP
5.0 out of 5 starsVerified Purchase
A highly customizable toilet fill valve
Reviewed in the United States on May 27, 2021
Size: Pack of 1
I have been using this toilet fill valve for many years to replace any failed one. I have got probably 6 of them in use. These are my notes and experience. PROS: - It is easy to customize it, height, water level, discharge quantity adjuster, etc. You can fine-tune... See more
I have been using this toilet fill valve for many years to replace any failed one. I have got probably 6 of them in use. These are my notes and experience.
PROS:
- It is easy to customize it, height, water level, discharge quantity adjuster, etc. You can fine-tune it to your specific toilet and water consumption preferences.
- Easy installation, the nut has a pressure click mechanism that allows you to know when you have tightened enough.
- The cleaning jet at the bottom of the tank is great to keep the tank clean.
- No tools are required to be installed.
- Durability is very good; my oldest valve uses this model for maybe 4-5 years and still operating without any issues.
- It fills quickly and shuts off the water very precisely.
- Reliable, it works consistently, and its settings are predictable and accurate.
CONS:
- It is a bit pricey, but the additional features and durability justify the cost.
RECOMMENDATION:
This toilet fill valve has a very good design and excellent performance. Highly recommended.
One person found this helpful
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R
5.0 out of 5 starsVerified Purchase
A nice upgrade to a standard fill valve
Reviewed in the United States on September 8, 2021
Size: Pack of 1
This product is a nice upgrade to a standard fill valve. It has a unique system on the bottom part which keeps debris from settling on the bottom of the tank. Installation is easy. The hardest part will be removing the old fill valve since the person who... See more
This product is a nice upgrade to a standard fill valve. It has a unique system on the bottom part which keeps debris from settling on the bottom of the tank.

Installation is easy. The hardest part will be removing the old fill valve since the person who installed it likely screwed it on way too tight. On that note, this valve has a very unique and useful system for installation where it is impossible to over-tighten it. You just screw it on by hand until it clicks 2-3 times are you are good to go.

The instructions are very detailed, so take the time to read them and follow them carefully.

A few people have mentioned noise issues, and though it is true that this is slightly louder than what you might be used to, but it fills up very fast and is really only loud for the first few seconds of the refill. You could also adjust the flow valve at the wall as well as on the unit itself to quiet it down a bit. I haven''t found it to be an issue.

Overall this is a great fill valve. Highly recommend installing one of these if your current one is slow, leaky, or otherwise broken.
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TONY M
5.0 out of 5 starsVerified Purchase
GREAT PRODUCT WORKED SO WELL I BOUGHT A 2ND.
Reviewed in the United States on June 22, 2021
Size: Pack of 1
This thing works GREAT. I had my orig. conventional unit go bad in the utility bathroom and needed to come up with something quick and easy. I left me with only the master bathroom. I live 15 miles from Ace Hardware who in fact had it for 11.59 problem is Ace is 15 miles... See more
This thing works GREAT. I had my orig. conventional unit go bad in the utility bathroom and needed to come up with something quick and easy. I left me with only the master bathroom. I live 15 miles from Ace Hardware who in fact had it for 11.59 problem is Ace is 15 miles from my home and Lowes is about 27 miles. Amazon delivered in 2 days saving me from a drive. When it arrived I read the instructions and in no time the toilet was back in service. Well worth the 13 bucks. It was simple to setup! A hint for quick and easy setup is to install the unit so it just clears the bowl lid. Once you do that all that is left to do is adjust the plastic rod for float level. The directions are drawn out and as long as you install it in the tank so the top of the unit does''nt hit the tank cover is basically all you need to know. Since my toilets were about the same, no reading was needed. I followed the same plan and done in a matter of minutes! They are both working great. A must upgrade if you are still using the old type.
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Top reviews from other countries

Amazon Customer
4.0 out of 5 starsVerified Purchase
Works well but keep the bottom retaining nut from the old unit
Reviewed in Canada on February 2, 2021
The unit works great and was easy to install , everything was great except for the bottom retaining nut that connects the toilet fill valve to the bottom of the tank. The one that comes with the unit isn''t one you would tighten with a wrench it''s a hand tight only kind of...See more
The unit works great and was easy to install , everything was great except for the bottom retaining nut that connects the toilet fill valve to the bottom of the tank. The one that comes with the unit isn''t one you would tighten with a wrench it''s a hand tight only kind of peace and that I couldn''t get tight enuff to not leak, it has these little plastic arms that stick you and you''re supposed to use them to hand tighten it down. But on mine there wasn''t enuff space so I had to trim them doing that made them a little sharp and couldn''t get it tightened as much as I needed so I used the plastic nut that I took off the old failed unit and I was able to tighten it down properly without any leaks cuts or clearance issues hope this helps , Good Luck
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Gray
5.0 out of 5 starsVerified Purchase
WOW!!! Very happy with this W.C. Tank fill system.
Reviewed in Canada on July 16, 2020
5 minute to install {after10 minute to get the old one out.} Ease peasy to install I put a small stone on the 90 Degree bend to keep it all down and stable in the tank base. Working better than ever .
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Amazon Customer
4.0 out of 5 starsVerified Purchase
Four Stars
Reviewed in Canada on December 21, 2017
Much better than the old one it replaced. Also doesn''t have any metal parts so no rust.
One person found this helpful
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Mehdi
5.0 out of 5 starsVerified Purchase
A+++ product
Reviewed in Canada on August 15, 2021
All good 👍👌😌
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Zack.
5.0 out of 5 starsVerified Purchase
Five Stars
Reviewed in Canada on April 19, 2018
this product works.... i install them 3months ago .... and i have no problem i give it a5 star
One person found this helpful
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