EasyPro 18 Watt UV Lamp for EC2600U Filter - Best Prices on Everything for Ponds and Water Gardens - Webb's Water Gardens
Tetra 18 watt Replacement UV Bulb for Tetra UV2, UVC18, BP2500-UV & BP4000- UV - Best Prices on Everything for Ponds and Water Gardens - Webb's Water Gardens
Actinic UV lamp 18 W blue, 600 mm - Pest control
UV BULB 18 W AQUATOP, POND MAX, SUN SUN, GRECH - Aquatics Unlimited