Extension tubes 34 and 36 {TAIL ~ each} include {HEAD ~ a clamp member} 38, as known in the art, for selectively sealing a respective extension tube 34 or 36 during the inter dialytic period 
Extension tubes 34 and 36 { TAIL ~ each } include { HEAD ~ a clamp member } 38 , as known in the art , for selectively sealing a respective extension tube 34 or 36 during the inter dialytic period
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH