10 Best Check Valves for Aquariums
for May 2022

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Pawfly 6 PCS Aquarium Air Pump Check Valves Red Clear Plastic One Way Non-Return Check Valve for Fish Tank

Pawfly 6 PCS Aquarium Air Pump Check Valves Red Clear Plastic One Way Non-Return Check Valve for Fish Tank

by Pawfly
What We like

Made of durable clear plastic. Net weight: 0.14 oz / 4 g. Please use a paperclip to poke it from Input side to Output side when the outlet inside gets stuck.

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Product Features

  • The check valves are for common aquarium air pumps. Please DO NOT use them with CO2 system. Great one way check valve for aquarium and fish tank.
  • Protect you air pump by preventing aquarium water from back siphoning during a power outage.
  • Air Hole Diameter: 0.15" / 4mm; Overall Size: 2.1" x 0.58" / 5.3 x 1.5 cm (L*Max.D)
  • Package Content: 6 Pcs x Air Check Valve

Package content: 6 pcs x air check valve Air hole diameter: 0.15" / 4mm; overall size: 2.1" x 0.58" / 5.3 x 1.5 cm (l*max.d) Protect you air pump by preventing aquarium water from back siphoning during a power outage. The check valves are for common aquarium air pumps. please do not use them with co2 system. great one way check valve for aquarium and fish tank.

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Pawfly 10 PCS Aquarium Air Pump Check Valves Red Clear Plastic One Way Non-Return Check Valve for Fish Tank

Pawfly 10 PCS Aquarium Air Pump Check Valves Red Clear Plastic One Way Non-Return Check Valve for Fish Tank

by Pawfly
What We like

Made of durable clear plastic. Net weight: 4g

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Product Features

  • Air Hole Diameter: 4mm/ 0.15"; Overall Size: 5.3 x 1.5cm/ 2.1" x 0.58"(L*Max.D)
  • Package Content: 10Pcs x Air Check Valve.
  • Please DO NOT use them with CO2 system. The one way check valves are for common aquarium air pumps.
  • Protect you air pump by preventing aquarium water from back siphoning during a power outage.

Please do not use them with co2 system. the one way check valves are for common aquarium air pumps. Air hole diameter: 4mm/ 0.15"; overall size: 5.3 x 1.5cm/ 2.1" x 0.58"(l*max.d) Protect you air pump by preventing aquarium water from back siphoning during a power outage. Package content: 10pcs x air check valve.

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Aquarium Air Pump Accessories Set 25 Feet Airline Tubing with 6 Check Valves, 6 Control Valve and 40 Connectors for Fish Tank White

ALEGI Aquarium Air Pump Accessories Set 25 Feet Airline Tubing with 6 Check Valves

6 Control Valve and 40 Connectors for Fish Tank White

What We like

40 Connectors (Straight & T-shape) - Perfectly connect standard tubing, T-connector allows you to combine two inputs to create one output with dual outlet pumps.

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Product Features

  • Excellent 3/16 inch ID Standard airline tube holder, stick tightly to the smooth fish tank. Red clear valve can prevent water from back siphoning.
  • 1 roll of 25 Feet Standard 3/16" Air Line Tubing, Suitable for aquarium, fish tank and hydroponics.
  • Flexible Air tubing,without kinking that stands up to wear and will not crack or become brittle over time.
  • 6 Pcs Air Control Valve and 6 Non-Return Check Valve.

1 roll of 25 feet standard 3/16" air line tubing, suitable for aquarium, fish tank and hydroponics. 6 pcs air control valve and 6 non-return check valve. Flexible air tubing,without kinking that stands up to wear and will not crack or become brittle over time. Excellent 3/16 inch id standard airline tube holder, stick tightly to the smooth fish tank. red clear valve can prevent water from back siphoning.

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Pawfly 2-Way Aquarium Air Flow Control Lever Valve Distributor Splitter Accessories Set with 1 Check Valve, T & Straight Connector and 4 Suction Cups for Fish Tank

Pawfly 2-Way Aquarium Air Flow Control Lever Valve Distributor Splitter Accessories Set with 1 Check Valve

T & Straight Connector and 4 Suction Cups for Fish Tank

by Pawfly
What We like

Package Content: 1 x 2-Way Air Valve Distributor, 1 x Non-return Check Valve, 1 pack x 3-Way T & Straight Connector, and 4 x Suction Cup.

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Product Features

  • Non-return Check Valve protect your air pump, Suction Cups fit the Air Valve Distributor and standard tubing, 3-Way T & Straight Connector mend or extend air hose.
  • Made of Chromium Copper material, air will never leak out.
  • Manually control the flow of vital O2 or switch an air pump 'on or off'.
  • INLET DIA: 3/16", OUTLET DIA: 3/16". Overall Size: 2" x 1.2" x 0.85" / 50 x 30 x 22 mm.

Inlet dia: 3/16", outlet dia: 3/16". overall size: 2" x 1.2" x 0.85" / 50 x 30 x 22 mm. Manually control the flow of vital o2 or switch an air pump 'on or off'. Non-return check valve protect your air pump, suction cups fit the air valve distributor and standard tubing, 3-way t & straight connector mend or extend air hose. Made of chromium copper material, air will never leak out.

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Leinuosen 20 Pack Aquarium Air Pump Check Valves Plastic One Way Non-Return Check Valve Air Pump Accessories for Fish Tank, Black

Leinuosen 20 Pack Aquarium Air Pump Check Valves Plastic One Way Non-Return Check Valve Air Pump Accessories for Fish Tank

Black

by Leinuosen
What We like

Practical design: the valves are detachable, you can unscrew to open it so as to clean and repair them easily

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Product Features

  • Application: the check valve can be applied for common aquarium air pumps, protect you air pump by preventing aquarium water from back siphoning during a power outage
  • Measurement: the air hole diameter is 4 mm/ 0.16 inch, the overall length is approx. 4.2 cm/ 1.7 inches, proper size for most fish tank
  • Quality: made of quality plastic, durable and sturdy, not easy to break, ensure long time of usage
  • Package contents: 20 pieces air pump check valves, sufficient for daily using and replacement; Color: black

Measurement: the air hole diameter is 4 mm/ 0.16 inch, the overall length is approx. 4.2 cm/ 1.7 inches, proper size for most fish tank Quality: made of quality plastic, durable and sturdy, not easy to break, ensure long time of usage Application: the check valve can be applied for common aquarium air pumps, protect you air pump by preventing aquarium water from back siphoning during a power outage Package contents: 20 pieces air pump check valves, sufficient for daily using and replacement; color: black

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Orlushy 6pcs Aquarium Plastic One Way Check Valves Non-Return, Air Pump Accessories for Fish Tank Airline Tubing (one Way)

Orlushy 6pcs Aquarium Plastic One Way Check Valves Non-Return

Air Pump Accessories for Fish Tank Airline Tubing (one Way)

by NOVA
What We like

Updated DesignThe check valve is detachable, you can clean the blot on it with great convenience by unscrewing it.

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Product Features

  • SpecificationLength: 1.9in/4.8cm, weight: 0.14oz/4g. It fits aquarium airline tubing of 4mm inner diameter. Please check and ensure the right size of the tubing for the check valve before ordering.
  • ApplicationOrlushy check valves can be applied for the common aquarium air pump. This non-return check valve connected to the hose prevents backflow of the water to your air pump. It can be used as air pump accessories in fish tank, aquarium and hydroponics.
  • Package6pcs one way check valves.
  • Durable Check ValveThe material the aquarium check valve is made of is high quality plastic, featuring of durable, sturdy and age-resistant. The color is red.

Specificationlength: 1.9in/4.8cm, weight: 0.14oz/4g. it fits aquarium airline tubing of 4mm inner diameter. please check and ensure the right size of the tubing for the check valve before ordering. Package6pcs one way check valves. Durable check valvethe material the aquarium check valve is made of is high quality plastic, featuring of durable, sturdy and age-resistant. the color is red. Applicationorlushy check valves can be applied for the common aquarium air pump. this non-return check valve connected to the hose prevents backflow of the water to your air pump. it can be used as air pump accessories in fish tank, aquarium and hydroponics.

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BornFeel Plastic One Way Non-Return Check Valves 16pcs Aquarium Air Pump Accessories for Fish Tank Air Line Tube Tubing Hose Pipe Fitting Clear

BornFeel Plastic One Way Non-Return Check Valves 16pcs Aquarium Air Pump Accessories for Fish Tank Air Line Tube Tubing Hose Pipe Fitting Clear

by BornFeel
What We like

Made of high quality Plastic material, not easy to aging, sturdy and durable.

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Product Features

  • Non Return Check Valves, 16pcs, enough for daily use and replacement.
  • Detachable design makes it easier for you to unscrew, clean and repair.
  • Small and compact, which protect air pump by preventing aquarium water from back siphoning during a power outage.
  • Air Hole Diameter: 5mm/ 0.19inch, overall size: 5 x 1.5cm/ 1.9 x 0.6inch(LxD). Proper size for universal air pump, fish tank, aquarium, fishing tackle shop, etc.

Small and compact, which protect air pump by preventing aquarium water from back siphoning during a power outage. Air hole diameter: 5mm/ 0.19inch, overall size: 5 x 1.5cm/ 1.9 x 0.6inch(lxd). proper size for universal air pump, fish tank, aquarium, fishing tackle shop, etc. Non return check valves, 16pcs, enough for daily use and replacement. Detachable design makes it easier for you to unscrew, clean and repair.

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Pawfly 5-Way Aquarium Air Flow Control Lever Valve Distributor Splitter Pump Accessories Set with 5 Check Valves & 6 Suction Cups for Fish Tank

Pawfly 5-Way Aquarium Air Flow Control Lever Valve Distributor Splitter Pump Accessories Set with 5 Check Valves & 6 Suction Cups for Fish Tank

by Pawfly
What We like

Package Content: 1 x 5-Way Air Distributors, 5 x Non-Return Check Valves, 6 x Suction cups

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Product Features

  • Made of Chromium Copper material, air will never leak out. Valve Diameter: 3/16" / 5 mm.
  • 6 Suction Cups fit the Air Valve Distributor and standard tubing well, sticking to the tank firmly.
  • Non-Return Check Valves protect you air pump by preventing aquarium water from back siphoning during a power outage.
  • Manually control the flow of vital O2 or switch an air pump "on or off".

Made of chromium copper material, air will never leak out. valve diameter: 3/16" / 5 mm. Manually control the flow of vital o2 or switch an air pump "on or off". Non-return check valves protect you air pump by preventing aquarium water from back siphoning during a power outage. 6 suction cups fit the air valve distributor and standard tubing well, sticking to the tank firmly.

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AQUANEAT Aquarium Check Valve, One Way Non Return Valve for Aquarium Air Pump, Red, 10pcs

AQUANEAT Aquarium Check Valve

One Way Non Return Valve for Aquarium Air Pump, Red, 10pcs

by AQUANEAT
What We like

Specially designed non-return valves will protect your air pump by preventing aquarium water from back siphoning during a power outage

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Product Features

  • They are made of plastic material for long time use
  • Fits standard aquarium airline tubing with inner diameter about 4mm
  • Place these air pump check valves in your airline tubing between your air pump and aquarium water to prevent water returning down the air line
  • Dimension: 0.5D x 2.1L; Includes: 10pcs check valves

Place these air pump check valves in your airline tubing between your air pump and aquarium water to prevent water returning down the air line Fits standard aquarium airline tubing with inner diameter about 4mm Dimension: 0.5d x 2.1l; includes: 10pcs check valves They are made of plastic material for long time use

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Pawfly 6 PCS Aquarium Check Valves One Way Non-Return Air Pump Accessories for Fish Tank Black

Pawfly 6 PCS Aquarium Check Valves One Way Non-Return Air Pump Accessories for Fish Tank Black

by Pawfly
What We like

Detachable design makes it easier for you to clean and repair. Unscrew to open it.

more infoarrow_drop_down

Product Features

  • Please DO NOT use them with CO2 system. The one way check valves are for common aquarium air pumps.
  • Protect you air pump by preventing aquarium water from back siphoning during a power outage.
  • Package Content: 6Pcs Air Check Valve
  • Air Hole Diameter: 4mm/ 0.16", Overall Size: 4.3 x 1.5cm/ 1.7" x 0.6"(L* D), Net weight: 4g.

Air hole diameter: 4mm/ 0.16", overall size: 4.3 x 1.5cm/ 1.7" x 0.6"(l* d), net weight: 4g. Protect you air pump by preventing aquarium water from back siphoning during a power outage. Please do not use them with co2 system. the one way check valves are for common aquarium air pumps. Package content: 6pcs air check valve

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