Filter Filters Used Waterproof,Locks Hard Case Remove All Filters Price Under $50 (1) $50-$100 (1) Fit Guide Multipurpose (2) Item Materials Rigid Plastic (2) SKB Cases 3I-1610-5B-C 3i Series Military-Standard 5" Deep Waterproof Case w/... $99.99 SKB Cases 3I-0907-4B-E 3i Series Mil-Standard 4" Deep Waterproof Small Case... $39.99