In terms of taps with rectangular water mouth, no custom made adaptor will be applicable. A change of faucet is necessary to ensure the water is filtered from the tap. We offer such new faucets, for a cost of 500rmb each.
Replacement service will be provided for free the first time. In the future, if moving the new faucet and returning the old one is needed, an extra charge of 200 rmb will be charged.