Abstract: The present invention is directed to a device for the delivery of products, preferably cleaning products comprising an active ingredient, more preferably cleaning products comprising a surfactant. The device comprises at least one vented reservoir for containing at least one liquid product and a dispensing appliance for dispensing the product from the reservoir. In one embodiment, the reservoir comprises at least one recess and/or protrusion and the dispensing appliance comprises at least one corresponding protrusion and/or recess. The reservoir is releasably secured in a leak-tight manner with the dispensing appliance such that fluid communication between the reservoir and the dispensing appliance is established, only when the protrusion(s) and recess(es) are fitted into each other, and the protrusion(s) and the recess(es) of the reservoir have a shape which is complementary, preferably exactly complementary, to the protrusion(s) and/or recess(es) of the dispensing appliance.