Bilge pumps RULE RM800B automatic 12 V bilge pump 50.63 L/min FA1371 €225.21 The new bilge pumps operate using an internal level sensor that causes them to activate when the water reaches 2 inches high and shuts them off when they are removed (Auto Sense Intelligence). If the level sensor becomes fouled with debris or contaminated water, the unique backup function prevents continuous pump operation, protecting the battery while... Add to cart