From what I understand, the durability between the two is quite different. The PTFE membranes are used for the filtration of organic solvents where as the PVDF membranes are generally for low protein binding. Furthermore the PTFE membranes typically require a polyethylene support.
When the U.S. and Washington State flags are flown from a cross staff, the U.S. flag flies from the peak and the Washington State flag occupies the position on the right end of the cross staff (the observer's left). Additional Information on Display US Flags.
The Service Flag is an indoor flag and should be flown facing out from the front window of the home or organization. If the U.S. flag is also displayed with the Service flag, the U.S. flag should be of equal or greater proportions and should take the place of honor above the Service flag. Each blue star on the flag represents a service member in active duty. A gold star is displayed if a service member is killed in action or dies in service. If several stars are displayed by one family the gold star takes the honor of being placed at the top.