Overview Keep your pool dazzlingly clear all season long with the Poolzilla 175 sq ft replacement filter cartridge, a premium drop-in upgrade for Hayward C1750 and C1900 filter systems. With a generous 175 square feet of pleated polyester filtration media, this cartridge captures dirt, pollen, sunscreen residue, and ultra-fine particles to keep your water crystal clear — and because there's so much surface area working for you, you'll clean it less often and run your pump more efficiently. Measuring 28-3/16 inches tall and 8-15/16 inches in outer diameter with a 4-inch center hole, it's precisely sized to slide right into your existing filter housing with zero modifications. Sturdy molded end caps create a leak-proof seal so dirty water can't sneak past, and the heavy-duty pleats are built to hold up through multiple rinse cycles before they need to be retired. The result? Cleaner water, a happier pump, and more time enjoying your pool instead of maintaining it. For best results, plan to rinse your cartridge every four to six weeks and replace it at the start of each swim season, or anytime your filter pressure climbs 8–10 PSI above its normal reading. A worn-out filter doesn't just leave your water cloudy — it forces your pump to work harder, throws off your chemical balance, and shortens the life of expensive equipment. Swapping in a fresh cartridge takes about five minutes: power off the pump, open the filter housing, lift out the old element, and drop in your new Poolzilla 175. It really is that easy. Order today and have a fresh cartridge ready to go before swim season hits — your pool (and your family) will thank you for the sparkling clean water all summer long. What's Included Your order includes the selected quantity of replacement pool filter cartridges. Each unit is individually inspected for quality before shipping.
