Waterproof IP68 Outdoor Junction Box - Junction box outdoor waterproof ip68 is 3 wires (3-pole) M25 connector. Size: 110 x 70 x 35mm. Waterproof protection level: IP68. 2x Tee junction boxes. High-Quality Materials - Our waterproof electrical box is used high-quality plastic housing, silicone material waterproof sealing ring, copper screw holes, it will not crack or fade in sunlight, good waterproof performance, not easy to oxidize, is durable for years, corrosion-resistant, high temperature resistant, long life.