Square IP56 Junction Box With Rubber Grommets- Available in 100mm or 150mm sizes. 100mm Junction Box with Grommets Waterproof IP56 PVC Plastic Adaptable Enclosure Small square weatherproof junction box, 100mm long x 100mm wide x 50mm deep (inside dimensions), with 6 x rubber grommets and a screw on lid (screws included). Made from a strong grey thermoplastic halogen free plastic, weatherproof rated upto IP56. 100mm square x 50mm deep ( Inside Dimensions ) 107mm square x 56mm deep ( Outside Dimensions ) with 6 x Rubber grommets around the sides - can be cut or removed Screw on lid - Screws included Waterproof up to IP56 - Waterproof Ratings Grey thermoplastic PVC halogen-free construction Typically used to protect cable joints etc from water 150mm Junction Box with Grommets Waterproof IP56 PVC Plastic Adaptable Enclosure Weatherproof rated to IP56 Inside Dimensions*: (L)150 x (W)110 x (D)70mm External Dimensions*: (L)158 x (W)120 x (D)77mm Sol