BLBAISH 6/12 Pack Fish Tank Filter Cartridges for Marina Slim Filters S10/S15/S20 - Quadruple Filtration - Replacement Filter Cartridges for Marina Slim Filters Healthiest Bars can sense the small movements

can sense the small movements of invasive animals up to 30 feet away in a 360° range

It's a versatile tool for various applications

9” diameter spring-action break-away steel rim

✔Easy to cut: You can easily cuts to into various sizes

The motion-sensor activation has a range of 25' x 50'

BLBAISH 6/12 Pack Fish Tank Filter Cartridges for Marina Slim Filters S10/S15/S20 - Quadruple Filtration - Replacement Filter Cartridges for Marina Slim Filters Healthiest Bars can sense the small movementsBrand: BLBAISH Color: 12 Pack Features: Strong Compatibility: BLBAISH replacement filter cartridges are designed for use with all Marina slim filters, perfectly compatible with Marina S10, S15, and S20 slim aquarium filters. Its also a great choice for your Marina slim mini filters. Ideal for goldfish. Quick Installation: Rinse the new filter cartridge under cool water to remove carbon dust, align the cartridge bottom key slot, insert the filter