Online - Pay by credit card, check or your account.
By Phone - Call us at 800.628.7748 Mon.- Thurs. 7:30 -12:00, 12:30-3:00 pm EST, Fri.Closed
By Fax - Fax your order with ourpdf form.
FLAT WIDTH 3". Made of seamless, regenerated cellulose. This membrane with an average pore radius of 24Å, is excellent for use in demonstrations of osmosis. (10 ft. roll)