1555F ABS Plastic & Polycarb Watertight Enclosures The Hammond Manufacturing 1555F Series ABS Plastic & Polycarb Watertight Enclosures are designed for harsh industrial environments or outdoor applications such as security, outdoor wireless, controls, etc. Ideally suited for mounting PCBs, panels, or DIN rail mounted components, the 1555F series is designed for wall mounting. The silicone rubber gasketed lid features a two-piece 'tongue & groove' construction to provide protection against access of oil, dust, and water. The Hammond Manufacturing 1555F Series ABS Plastic & Polycarb Watertight Enclosures offer a satin texture finish with a smooth, recessed surface on the lid for a membrane keypad or label.