This water purifier has a capacity of 18 Ltr ,so as to ensure continuous supply of purified water even when there is no electricity or running tap water. With a fully automatic operation, this purifier begins the purification process when the water level falls below maximum. It automatically stops when the tank is full or when there is no inlet supply of water.The consumables including the pre-sediment filter,pre-carbon filter,ultra violet chamber, RO membrane & filter will not covered under warranty ,Only electric parts covered warranty. Installation charges are 500-700/-in all over India. For more information customer care number:08769114059 . TERMS AND CONDITION 1) Installation charges Paid by customer( 500-700/-) .if customer will install by third party so warranty will avoid (withdrawal) . 2) Membrane and filters is not cover in warranty . 3) RO Membrane will cover standard TDS of water (upto 1500-2000 TDS) . 4) Water Purifies body color may be differ against Shaw on website. 5) Warranty cover for 6 month ( PUMP , SMPS). 6) Our Executive Will solve customer problems within 24-48 hr