Some dealers also offer to ship the cartridges to the buyer. Buyers need to realize that they have to pay for the shipping separately. It is okay to buy wholesale faucet cartridge in bulk, but you have to know how much it actually costs. Do some research and you should be able to estimate how much it is going to cost you. It is okay to buy more than one cartridge. Just make sure you have enough space to store the additional ones. If you do not have a storage facility, you may just be replacing your wholesale one cartridge with the new one. This does not always guarantee that the replacement model is better than the original one.Most importantly, you need to be able to replace the defective wholesale faucet cartridge yourself. Do not settle for buying the new model just because the original one went bad. It is possible to solve the problem yourself. There are guides and tips on the Internet that can help you replace it without calling anyone.However, if the problem is too complicated for you to fix, you should contact the manufacturer first. The manufacturer is the one who designed and manufactured the cartridge. They are also the ones who sold it to you. It would be very wrong of you to use their replacement cartridge if the problem is serious.Buying a replacement Dual Handle Mixer Factory from other sources other than the manufacturer's is a bad idea. You may just be avoiding the higher cost of the replacement, but you might also be putting at risk your faucet. You are better off replacing it with a new one.