PELICAN PRODUCTS INC. 015600-0050-110 - MADE OF ULTRA-HIGH IMPACT COPOLYMER WATERTIGHT, AIRTIGHT, DUSTPROOF TREKPAK DIVIDER SYSTEM INCLUDED BUILT-IN PRESSURE EQUALIZATION VALVE - THE PELICAN 1560TP CASE WITH TREKPAK DIVIDER SYSTEM (BLACK) IS A DURABLE, WATERTIGHT, AIRTIGHT, DUST-PROOF, CHEMICAL-RESISTANT AND CORROSION-PROOF HARD CASE USED TO CARRY ANY KIND OF EQUIPMENT THAT NEEDS TO BE PROTECTED FROM THE ELEMENTS. IT IS MADE OF ULTRA-HIGH IMPACT STRUCTURAL COPOLYMER THAT MAKES IT EXTREMELY STRONG AND DURABLE. IT HAS A 0.25'' (6.4 MM) NEOPRENE O-RING, TWO EASY-OPEN DOUBLE THROW LATCHES THAT SEAL PERFECTLY. IT HAS A BUILT-IN, AUTOMATIC PRESSURE EQUALIZATION VALVE FOR CHANGES IN ALTITUDE OR TEMPERATURE. THE CASE USES STAINLESS STEEL HARDWARE AND HAS PADLOCK PROTECTORS TO - EQUAL TO PL-015600-0050-110