Sunfilm Black & White Panda Film 10 ft x 10 ft Folded Adjust A Wing They also allow excess air

They also allow excess air pressure from the pump to escape to decrease pressure on the diaphragm of your pump

Strainer protects impeller from damage

Includes tempered glass

maximum drainage so that you can hardly ever over water your plant

Sunfilm Black & White Panda Film 10 ft x 10 ft Folded Adjust A Wing They also allow excess airWaterproof poly film that is black on one side and white on the other can be used for growing areas. Sunfilm Panda Film works well as a reflective film (reflects 90% of the light back to the growing area) or as a room partition. This is a very heavy duty 5. 5 mil film for a variety of uses. Individually packaged.