Prevents harmful debris from entering your pump, reducing pump maintenance. The heavy duty netting is designed to be both tear and blockage resistant. Perfect product for use in canister filtration systems, aquariums, pond filters, to hold media for ensure a clean aquariumIndustrial grade mesh material, triple stitched, wear resistant, protects against harmful organic substances that cause wear and tear. Heavy duty mesh is designed to resist both tearing and blockages. Practical drawstring to secure the pump in the bag. Package content: 2 filter bags. Dimensions: approx. 31 x 41 cm (L x W) Made of mesh fabric, durable and strong for use. Quality mesh industrial, triple stitched, durable mesh. Heavy duty netting is both tear and snag resistant. Convenient drawstring to secure the pump in the bag. The mesh pump bag is easy to clean or replace. The pump cover prevents debris from entering, increasing the life of the pump. Dimensions are suitable for most pump sizes. Protects the pump against harmful deposits. Specifications: Product name: filter bag. Color: black Material: mesh Dimensions: approx. 31 x 41 cm (L x W). Contents: 2 filter bags. Note: Connection: 1 cm = 10 mm. 1. Due to the light and screen setting difference, the color may be slightly different from the pictures. 2. Since measurements are taken by hand, the sizes indicated may vary by 0.5-2 cm.