Zapp Pure UV Ballasts by GCTek $ 134.95 $ 132.95 ZP-5/10 - $ 132.95 ZP-20/40 - $ 161.95 Size ZP-5/10 ZP-20/40 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Replacement Ballast for Zapp Pure UV Sterilizers