Home / PPE/PPC / B1 TWIN UNIFIT FILTER B1 TWIN UNIFIT FILTER PRODUCT INFO Valve replaced with every filter Individually sealed Right hand thread for twin PRODUCT RATING CE EN 14387:2004 +A1:2008 B1 NRCS AZ2011/54 GASES Inorganic Add to cart Request a Quotation SKU: DHCT-B1 Category: PPE/PPC Social Share Related products SA7B2 REFLECTIVE VEST Select options TWO TONE MESH REFLECTIVE VEST Select options DROMEX CUT5 SEAMLESS KNITWRIST LINER Select options CUT5 SOLAR GLOVE Select options