Replacement Valves Cartridge & Bush Spares for Franke Olympus, Eiger and Basel Replacement valves/cartridges and bushes for Franke kitchen taps. Fully compatible. Buy replacement valves cartridges if your tap is leaking or dripping from the end of its spout. Buy with confidence, hundreds of 5* eBay reviews, taps fixed and happy customers. Got a dripping spout? Don't worry, we have the answer! Tap Spares UK quality ceramic disc valves and bushes are supplied as a pair or a single valve depending on the model. They are fully compatible with Franke kitchen taps.