BL3435 KO MG PRO ECP. The Borg Locks BL3435 KO ECP is a marine grade black mechanical lock specifically designed for flat bar gates with thicknesses between 10-30mm. It's slim profile ensures compatibility where standard locks may be too wide. Featuring back-to-back lever handle keypads, it offers secure access control from both sides of the gate. The lock's marine-grade construction provides enhanced durability, making it suitable for external environments.. Trigger release deadbolt. Narrow case designed for flat bar gates. Non-handed. On door code changing - ECP (Easy Code Pro)