KILLARK FITTINGS TTINGS FI CELOX™ KQS SERIES HA Z LO C SEALING MATERIALS ENY Series Class I, Div. 1 & 2, Groups A, B, C, D Class II, Div. 1 & 2, Groups E, F, G Class III E489370 KQS-250 ML L R 117 16 KQS-050 ML FEATURES -SPECIFICATIONS Applications Sealing Compound CELOX™ KQS Series is an alternative quick sealing compound used extensively for sealing conduit to prevent the spread of explosive gases and vapors.