This is a replacement part for your TetraPond Water Garden Pump Pre-Filter unit. If you have that pre-filter attached to your pond pump, this is the coarse, black foam cylinder that goes inside it. Its job is to catch leaves, debris, and gunk BEFORE they get into your pump, which helps prevent clogs and extends the pump's life. The foam is 6 inches long and 4 inches in diameter, with a 1-inch hole in the center that fits over the pre-filter's core. When it gets dirty (usually every few weeks depending on your pond), you just open the pre-filter lid, pull out the old foam, rinse it or replace it with this new one, and snap the lid back on. Super easy maintenance. Tetra is a trusted brand in pond care. Make sure this is the correct size for your specific Tetra pre-filter model. Keeping this foam clean is key to keeping your pond water circulating properly!
