A filter holder for attaching a filter to an absorption canister
Usable cartridges (KGC-1 type S for organic gas (C), KGC-1 type L for organic gas (C), KGC-1 type L for halogen gas (A), KGC-1 type L for ammonia (H), KGC-1 type L for sulfurous acid gas (S), KGC-1 type L for acid gas (B), KGC-1 type L for hydrogen sulfide (K))
Cannot be used with R-6, 1761G, or 1561G
