All Products › British GSR Filters (Open NOS) Image 1 of 1 British GSR Filters (Open NOS) from CA$6.05 sold out These filters are intended for use with the “GSR” mask. The filter packs are originally marked for a 15 year shelf life. Year of Production: Select Year of Production Training Filter 2008 2010 2011 2012 2013 Get notified by email when this product is in stock. Sold Out Added! These filters are intended for use with the “GSR” mask. The filter packs are originally marked for a 15 year shelf life. Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More You Might Also Like MSA Advantage 1000 Mask w/ Accessories CA$247.50 Sold out Polish MS-3/4 40mm GOST Filters CA$18.15 Sold out British Army S6 Gas Mask CA$193.60 Sold out Yugoslavian M1 Gasmask from CA$54.45 Sold out British L12A1 Filter (Sealed) Sale Price: CA$18.15 Original Price: CA$30.25 Sold out