Many people have found that the plastic corrugated pipe in the house does not take long to be broken, and the pipe is easily broken. In a few months, the light plastic bellows has to be replaced by several. How to choose a shower hose? What details should I pay attention to when buying a shower? How much is the price of a shower? These are conceptually introduced to buy and pay attention to the first thing to pay attention to and consider.
 At present, the more common shower hoses on the market are made of pvc material, rubber or hose and steel wire. The resistance of the steel wire is better, it is not easy to break, and the service life of the hose can be increased. Of course, there is no absolute answer to which one is good.
1. The plastic bellows is the link between the hand shower and the faucet. The general hose consists of an EPDM inner tube, a high temperature resistant nylon core and a 304 stainless steel outer tube. The nut is made of cast copper and the gasket is made of nitrile rubber (NBR). EPDM rubber is a copolymer, a rubber obtained by copolymerizing ethylene, propylene and a non-conjugated diene. Then some friends have to ask, why use this rubber as a shower hose?
2. Firstly, the aging resistance and superheat resistance are quite good. EPDM has excellent weather resistance, ozone resistance, acid and alkali resistance, and the mechanical properties change little after immersion in 125 °C superheated water for 15 months. The expansion ratio is only 0.3%. The use of EPDM as a hose is the best material for showers due to the need for long-term hot water flow.
3, followed by elasticity, we all know that when using a hand-held shower, it is necessary to constantly stretch to wash the body, and the EPDM molecular chain can maintain flexibility in a wide range, and can still be maintained in the low position, so this is also the design One of the main reasons for choosing EPDM.
 When purchasing a shower, try to stretch the hose and check the elastic properties of the plastic bellows. The better the general elastic properties, the better the rubber material used. The nylon core is generally made of coated acrylic fiber to protect the inner tube. The 304 stainless steel outer tube is made of stainless steel wire to protect the inner tube and limit stretching and explosion protection. Some manufacturers' products are not stainless steel even if they are marked with stainless steel. This is something that everyone must pay attention to when purchasing. Check whether the rebound is restored to the original position after stretching.