Non-Return Check Valve | 5 pc pack

• 100% Brand New and High Quality. It is planned and built with quality materials that are superior to some other wipe channel available.
• Stops water returning the air tube. Permits air to go one way as it were.
• Little and Compact, Fits standard aquarium carrier 5mm internal distance across.
• Lovely fish item for your aquarium decoration. Easy to utilize.

They are made of plastic material for long time use. Simple to introduce – just cut the aircraft between the air stone and the vacuum apparatus and supplement register valve with carrier.