how often do they need to be replaced?
1053418
Depends where you put them ... I store men in a lock box/safe and have not replaced gam in over a year. If you keep them in "open air," I assume they would need to be replaced about every six months (a guess).
1053419
I replace mine every year just to be safe. They probably would last a lot longer but I am careful and want things to remaindry.
1053420
It all depends on the application: size of area used in, how airtight the area is and the humidity level of area.
1053421
I keep them in my camera bag to keep moisture out of my equipment. My case is fairly dry, but I use these for extra care. I replace them once a year.
2019796
Sonicare says replace every 6 months maximum. Depending how often you brush, the force you use against your teeth, and the number of people using the brush (for those who like to share), it varies. I've been replacing mine every six months or so. A two pack lasts a year and is generally cheaper to buy than a single brush head. Don't be afraid to rinse the brush head under water to clean it. Let it dry before you use again. Never immerse the handle/body in water, however.
1189815
They definitely don't need to be replaced every use. They're a pretty heavy silicone-type material.
256426
It depends on usage. The Everpure website states that they should be replaced once a year. But it also states that they have a 1000 gallon capacity. I take this as meaning replace once per year or every 1000 gallons whichever occurs first.Another indicator that you need to replace the cartridges is when the water flow out of them has diminished significantly.
1733238
I have been using mine regularly once per week for a couple of months and don't foresee a need to replace them but maybe after a year or so who knows? If I boiled them too long accidentally then maybe that could ruin them and they would need replacing.
2270553
No idea - I just replace them when the water output gets slow - approx once a year with regular use
63160
I am not sure have not had to replace them. My grand kids use them all the time.
938389
I have been using them for 2 years. if you use them twice a day they will last 30 days. You than need to replace them. I don believe it is permanent, you will have to continue on a maintenance program I sometimes forget, but most of time I use them at least once a day I hope this helps by iluvmath65@yahoo.com
265020
I don't know, because I've never had to replace one. They are so durable they last a long, long time.
217145
I'm not exactly sure. They're stainless steel so I haven't needed to replace them.
1045506
Its depends of the size or the aquarium and number of fishes. Don't believe the company, I use to replace maybe each 3-4 month and some components do not have to be replace, only wash them. Regards!!!
814717
Mine has been working for several years and just now needs replacement. DOES not need frequent replacement. I've got them in both bathrooms.
228436
I've used mine about 70-100 times and still no need to replace. Definitely not single-use!
2095188
We change ours once a year. Not sure if that is what is recommended though...
950683
Don't know, I haven't had to replace them. But it's my understanding they last or thousands of hours.
71178
They are not replaceable. I believe the company is out of business. I had 2 of them go bad
643277
Tje recommendation is every 3 months. Supposedly, there is a wear line or something that will tell you. I plan on replacing mine every 4 months or so. Hope this helps!