Rule's 35A float switch for bilge pumps features abrasion-resistant marine-grade blocked wire. Switch is constructed with exclusive moisture-tight seals and an environmentally friendly mercury-free design. Suitable for any submersible bilge pump with an operating current rating of 14 amps at 12V DC. Switch will turn pump on when the water level reaches 2" and will turn the pump off when the level falls to 3/4". 16-gauge wire size. 1-3/4" x 2-5/8". Two-year warranty. Mercury-free design 14-amp maximum operating current | Rule 35A -A-Matic Float Switch For Bilge Pump