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At AquaCave, we offer some of the best selections and best prices on Aquarium air valves and fittings for your marine, reef, and freshwater aquarium.

29 of 29 Items
  • 12 Valve Air Manifold, 3/8 Inlet

    AquaCave

    12 Valve Air Manifold, 3/8 Inlet

    12 Valve Air Manifold, 3/8 Inlet Material: Metal Aquarium & Accessory Type: CO2 & Ozone Equipments Type: Aquariums & Accessories Application: air pump Valves: 12

    Was: $19.99
    Now: $16.99
  • 8 Valve Air Manifold, 3/8 Inlet

    AquaCave

    8 Valve Air Manifold, 3/8 Inlet

    8 Valve Air Manifold, 3/8 Inlet Material: Metal Aquarium & Accessory Type: CO2 & Ozone Equipments Type: Aquariums & Accessories Application: air pump Valves: 8

    Was: $17.99
    Now: $15.29
  • Anti-Vibration Pad, 6" x 6" x 7/8" Anti-Vibration Pad, 6" x 6" x 7/8"

    AquaCave

    Anti-Vibration Pad, 6" x 6" x 7/8"

    Anti-Vibration Pad, 6" x 6" x 7/8" These sound dampening pads work best with heavy external water pumps and large air pumps and recirculation blowers where there is significant vibration being transferred from the pump to the surface the pump is mounted...

    $12.95
  • 4 Valve Air Manifold, 1/4" Inlet

    AquaCave

    4 Valve Air Manifold, 1/4" Inlet

    4 Valve Air Manifold, 1/4" Inlet Material: Metal Aquarium & Accessory Type: CO2 & Ozone Equipments Type: Aquariums & Accessories Application: air pump Valves: 4

    Was: $14.99
    Now: $12.74
  • Nickle Plated Lever Style Air Valve 3/16" ID

    AquaCave

    Nickle Plated Lever Style Air Valve 3/16" ID

    Nickle Plated Lever Style Air Valve 3/16" ID For use with 3/16" I.D. tubing, 1/8" MNPT. Nickle Plated Lever Style Air Valve 3/16" ID For use with 3/16" I.D. tubing, 1/8" MNPT. Product code: 4341Item No. AE-VN22

    $7.99
  • Brass Valve 3/16" ID

    AquaCave

    Brass Valve 3/16" ID

    Brass Valve 3/16" ID For use with 3/16" I.D. tubing, 1/8" MNPT.Brass Valve 3/16" ID For use with 3/16" I.D. tubing, 1/8" MNPT.Product code: 4340Item No. AE-VBR1

    $6.99
  •  Anti-Vibration Pad, 4" x 4" x 7/8"  Anti-Vibration Pad, 4" x 4" x 7/8"  Anti-Vibration Pad, 4" x 4" x 7/8"

    AquaCave

    Anti-Vibration Pad, 4" x 4" x 7/8"

     Anti-Vibration Pad, 4" x 4" x 7/8" These sound dampening pads work best with heavy external water pumps and large air pumps and recirculation blowers where there is significant vibration being transferred from the pump to the surface the pump is...

    $5.95
  • 5 Valve Air Manifold

    AquaCave

    5 Valve Air Manifold

    5 Valve Air Manifold Material: Metal Aquarium & Accessory Type: CO2 & Ozone Equipments Type: Aquariums & Accessories Volume: 5L Application: air pump Length: 27mm species: Air check valve Dia: 4mm Valves: 5

    Was: $6.99
    Now: $5.94
  •  Anti-Vibration Pad, 3" x 3" x 7/8"  Anti-Vibration Pad, 3" x 3" x 7/8"

    AquaCave

    Anti-Vibration Pad, 3" x 3" x 7/8"

     Anti-Vibration Pad, 3" x 3" x 7/8" These sound dampening pads work best with heavy external water pumps and large air pumps and recirculation blowers where there is significant vibration being transferred from the pump to the surface the pump is...

    $5.45
  • 4 Valve Air Manifold

    AquaCave

    4 Valve Air Manifold

    4 Valve Air Manifold Material: Metal Aquarium & Accessory Type: CO2 & Ozone Equipments Type: Aquariums & Accessories Volume: 5L Application: air pump Length: 27mm species: Air check valve Dia: 4mm Valves: 4

    Was: $5.99
    Now: $5.09
  • Elite Air Check Valve by Hagen

    Fluval

    Elite Air Check Valve by Hagen

    Hagen Plastic Check Valve - Accurate, leak-proof security - Protects air pump from back-siphoning damage - Prevents flooding during power failuresHagen Plastic Check Valve - Accurate, leak-proof security - Protects air pump from back-siphoning damage -...

    $4.99
  •  Anti-Vibration Pad, 2" x 2" x 7/8"  Anti-Vibration Pad, 2" x 2" x 7/8"

    AquaCave

    Anti-Vibration Pad, 2" x 2" x 7/8"

     Anti-Vibration Pad, 2" x 2" x 7/8" These sound dampening pads work best with heavy external water pumps and large air pumps and recirculation blowers where there is significant vibration being transferred from the pump to the surface the pump is...

    $4.95
  • Air Check Valve - Red Air Check Valve - Red

    AquaCave

    Air Check Valve - Red

    Air Check Valve - Red   Fits standard 1/4" OD air line.Air Check Valve - Red   Fits standard 1/4" OD air line.Product code: 7752Item No. CO-AZ-CVR

    $4.95
  • 3 Valve Air Manifold

    AquaCave

    3 Valve Air Manifold

    3 Valve Air Manifold Material: Metal Aquarium & Accessory Type: CO2 & Ozone Equipments Type: Aquariums & Accessories Volume: 5L Application: air pump Length: 27mm species: Air check valve Dia: 4mm Valves: 3

    Was: $4.99
    Now: $4.24
  • Plastic Valve 3/16" ID

    AquaCave

    Plastic Valve 3/16" ID

    Plastic Valve 3/16" ID For use with 3/16" I.D. tubing, 1/8" MNPT.Plastic Valve 3/16" ID For use with 3/16" I.D. tubing, 1/8" MNPT.Product code: 4339Item No. AE-VPL12

    $3.99
  • 2 Valve Air Manifold 2 Valve Air Manifold

    AquaCave

    2 Valve Air Manifold

    2 Valve Air Manifold Material: Metal Aquarium & Accessory Type: CO2 & Ozone Equipments Type: Aquariums & Accessories Volume: 5L Application: air pump Length: 27mm species: Air check valve Dia: 4mm Valves: 2

    Was: $3.99
    Now: $3.39
  • U-Shape Air Line Connector U-Shape Air Line Connector U-Shape Air Line Connector U-Shape Air Line Connector U-Shape Air Line Connector

    AquaCave

    U-Shape Air Line Connector

    U-Shape Air Line Connector Material: made of stainless steel, durable and can be used for a long time; Color: silver Suitable Tube Size: CO2 tube 4*6mm/air hose 3/16 ", fit fish tank glass thickness: less than 0.63" It can prevent the CO2 tubing and...

    Was: $3.99
    Now: $3.39
  • Check Valve by Won Brothers

    Check Valve by Won Brothers

    When pump is installed below water level, check valve must be in use in order to prevent the siphoning of water into the pump in the event of power outage.When pump is installed below water level, check valve must be in use in order to prevent the...

    $2.95
  • In-line Air Valve

    AquaCave

    In-line Air Valve

    In-line Air Valve Material: Metal Aquarium & Accessory Type: CO2 & Ozone Equipments Type: Aquariums & Accessories Volume: 5L Application: air pump Length: 27mm species: Air check valve Dia: 4mm  

    Was: $2.99
    Now: $2.54
  • Airline Clamp

    Azoo

    Airline Clamp

    Manufactured of tough plastic without sharp edges with 12-position ratchet control.Fits up to 1/4" ID tubing.Manufactured of tough plastic without sharp edges with 12-position ratchet control.Fits up to 1/4" ID tubing.Product code: 1448Item No. AE-DC10

    $1.95
29 of 29 Items