Zapp Pure UV Sterilizers are designed by GCTek to work with today's low amperage pumps and high flow filters, including the AquaBead/AlphaONE line of quality filters. Constructed of durable stainless steel, Zapp Pure UV Sterilizers feature an impressive 4" vessel with 2" inlets/outlets means no flow restrictions. These units are truly high performance/high intensity units utilizing over 70,000 microwatts of killing power. Few UV's can make this claim.
These units won't nickel and dime you to death like competitor units on the market. Thanks to the high efficiency deisgn, with a Zapp Pure UV you only need to replace one lamp instead of several lamps used by inferior units. This saves you big money down the line.
Changing a lamp or ballast on these units is so simple even an adult can do it. It's not as complicated as programming your VCR. Simply remove the top cover, unplug the single 4 prong connector, slide out the lamp and insert the new one and you're done. Removing the quartz tube is just as easy.
Zapp UV Sizing: