Product Description FAQ 1Q: Why we use Water Softener? A: Much of the water you use contains traces of calcium, iron and magnesium, water with these metals known as "hard water", water softener can help you remove these traces. 2Q: How long the resin can be used in Water Softener? A: Usually the resin can be use for 5years, it can be adjusted according to your water hardness. 3Q: How long the activated carbon can be used in Central Water Purification? A: Usually you should change it each 1 year, it can be adjusted according to your water quality. 4Q: Why choose KEMAN electronic control valve? 1, PPO material, higher working pressure than others 2, Ceramic moving disk, small rotation torque 3, Abrasion resistance of sealing surface, outstanding and long-lived deal. 4, Valve can be operated with pressure directly. 5, Chinese, English, Spanish language can be set, other language can be customized 5Q:Can I get your products with our logo and design? A: Most of products are OEM or ODM with your logo and brand not including the control valves( Keman brand valve) 6Q: How long for products my goods? A: 7 Days for sample orders. 20-25 days for mass production orders (based on different quantities) 7Q: What's your warranty? A: Our warranty is 1 year. But normally, our machine can work 5 years before repair. 8Q:Are you manufacturer ? A:Yes, we are the manufacturer with continuous and improved R&D, Production, Quality Check and service supply. 9Q:What's your main products ? A: Our products is water softeners, water softener and water filter all-in-one machine, control valves, RO water purifiers, housing filters, all kinds of filter components and so on. 10Q:Can I get your price list ? A: Yes, sure. In order to send you our available offered price, please choose the products and let us know the product model and requirement in detail. 11Q: What's your after-sales policy( The terms of guarantee) ? A: Different products, different guarantee policy.The time of quality guarantee: 1 year. 12Q: What's your payment policy? A: Samples(Less than 3000USD): 100% in advance via T/T or West UnionFormal order: 30% payment in advance via T/T as deposit payment and balance payment will be done against the Copy of B/L L/C payment is also available.