Upgrade Your Whirlpool Bath to a Hydro System. The Hydro-1 upgrade adds Airpool & Combination to a whirlpool bath and comprises of 18 chrome spa nozzles and a seperate on/off control featuring plus, minus, wave (pulsating) and manual purge settings. The item "Hydro Upgrade, Add an 18 Nozzle Air Spa to your Whirlpool Bath" is in sale since Monday, March 14, 2011. This item is in the category "Home, Furniture & DIY\Bath\Whirlpool/Spa Baths".The seller is "bathroom_express" and is located in Newport. This item can be shipped to United Kingdom.