The 3-way valve is metal and separates the air flow into the gravel filter and air stone. Increase or decrease airflow for everyone with easily adjustable knobs. The hose fits snugly with no air leaks. Check valves must be installed in the correct direction, with the pointed part of the valve pointing toward the pump to allow air to flow. So far there is no backflow to the pump. Everything works perfectly and is easy to assemble.
Tetra ReptoFilter Cartridges Whisper Technology
4 Review
π PULACO 95GPH 5W Mini Submersible Water Pump: Ideal for Aquariums, Fish Tanks, Ponds, Fountains, and Hydroponics
6 Review
π§ VIVOSUN 800GPH Submersible Pump - Ultra Quiet Water Pump with 10ft High Lift, 24W Power, 6.5ft Cord, 3 Nozzles - Ideal for Fish Tank, Pond, Aquarium, Statuary, Hydroponics - 3000L/H Pumping Capacity
5 Review
π Tetra Carbon Filters: Perfect Fit for Whisper EX Filters in Aquariums
8 Review
𧲠Efficient Magnetic Fish Tank Cleaner: KEDSUM Floating Clean Brush with Handle Design
34 Review
Jasonwell Magnetic Aquarium Fish Tank Glass Algae Cleaner - Floating Brush (L Size)
37 Review
Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review
Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review