4kinds Aquarium Surface Skimmer Filter for Saltwater tank Protein Skimmer Parts for marine aquarium Skimmer Part accessories to Remove Protein Oil Slik Bacterial Film Aquarium Remover Oil Water surface for Fishtank Plant

No. 1 Type: 19cm Height water inlet calibre to connect with inner diameter 12 or 20mm water pipe). No. 2 Type: 17cm Height water inlet calibre to connect with inner diameter 12 or 20mmwater pipe). No. 3 Type: 28cm Height water inlet calibre to connect with inner diameter 12 or 20mmwater pipe). No. 4 Type: 28cm Height water inlet calibre to connect with inner diameter 16 or 22mm water pipe). Suitable for freshwater or saltwater fishtank. Save space of your aquarium. Collect and Remove surface oil effectively. Keep the water surface clear so that can help lighting to make aquarium plants photosynthesis. 1 Product Specifications: Item: Brand New Aquarium Surface Skimmer Parts. Models: 4 kinds for your choice. No. 1 Type: 19cm Height water inlet calibre to connect with inner diameter 12 or 20mm water pipe). No. 2 Type: 17cm Height water inlet calibre to connect with inner diameter 12 or 20mmwater pipe). No. 3 Type: 28cm Height water inlet calibre to connect with inner diameter 12 or 20mmwa