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Check Valves
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Anjon Dual Union Check Valve AssembliesAnjon Dual Union Check Valve AssembliesAnjon Check Valve Assemblies use high quality CPVC dual union check valves. Both 1.5" and 2" Check Valves and Check Valve Assemblies are available.
CUCV-1.5W CUCV-2W UCVA1.5 UCVA2
AquascapePRO® Dual Union Check Valve 2.0AquascapePRO® Dual Union Check Valve 2.0AquascapePRO® Dual Union Check Valve 2.0 provides a professional pump and plumbing connection inside skimmer filter systems, as well as Pondless® Water Vaults.
Aquascape® Check Valve Assemblies - Available for Most Aquascape® Pond ProductsAquascape® Check Valve Assemblies - Available for Most Aquascape® Pond ProductsCheck Valve Assemblies are necessary for connecting pumps to the pond plumbing. The Aquascape® dual union check valves allow you to disconnect the pump and plumbing from a filter without draining all the water. 
Atlantic Water Gardens Skimmer Accessories - 3" Check Valve AssemblyAtlantic Water Gardens Skimmer Accessories -  3" Check Valve AssemblyThe Atlantic Water Gardens AWGCV30 Check Valve features a full flow 3" ’swing style’ check valve with an offset valve body, 90° elbow and a 3" rubber coupling on the outlet. A 3" pump discharge pipe (not included) can be extended to any length using 3" PVC.
Atlantic Water Gardens Triton Check Valve AssemblyAtlantic Water Gardens Triton Check Valve AssemblyThe award-winning Atlantic Water Gardens Triton Check Valve is the only check valve designed exclusively for the water garden industry. The ‘swing style’ Triton Check Valve allows clearance when installed with direct drive pumps.
Complete Aquatics 3" and 4" Check Valve Bodies - Use HorizontallyComplete Aquatics 3" and 4" Check Valve Bodies - Use HorizontallyComplete Aquatics Check Valves can be used horizontally or vertically. 
 Dual Union Check Valves.
Complete Aquatics Check Valve Bodies - Use Vertically or HorizontallyComplete Aquatics Check Valve Bodies - Use Vertically or HorizontallyComplete Aquatics Check Valves can be used horizontally or vertically. Two check valve types are available: Slip x Union Swing Check Valves and Dual Union Check Valves.
Complete Aquatics Dual Union Check Valve KitsComplete Aquatics Dual Union Check Valve KitsComplete Aquatics Check Assemblies take all of the guess work out of fitting selections for all Complete Aquatics pumps. There are several different sizes of Check Valve Assembly. The 2" Check Valve Kits "A" and "B" are designed for optimal water flow and solids-passing capabilities.
EasyPro Check Valve for RV CompressorsEasyPro Check Valve for RV CompressorsThis check valve installs on the inlet side of the rotary vane compressors. Installs between compressor and diffuser/air stone.
EasyPro Eco-Series Check Valve AssemblyEasyPro Eco-Series Check Valve AssemblyThese check valve assemblies are used with EasyPro pumps in the Eco-Series skimmers and vaults. Due to different heights and space configurations, a separate assembly is needed other than those used in our Pro-Series skimmers and vaults.
EasyPro Inline Check ValveEasyPro Inline Check ValveThis all plastic check valve is commonly used in long airline runs to prevent water from filling the tubing.
EasyPro Pro-Series Coupling Check Valve AssemblyEasyPro Pro-Series Coupling Check Valve AssemblyThese check valve assemblies are used inside Pro-Series skimmers to bring the flow of water from the pump up to the outlet hole in the back wall of the skimmer. Check valve assemblies connect the pump to the plumbing and keep plumbing line full of water even when the pump is off.
Helix Discharge Kits (Check Valve Assemblies) for Helix Skimmer and Assorted PumpsHelix Discharge Kits (Check Valve Assemblies) for Helix Skimmer and Assorted Pumps

Helix Discharge Kits are pre-assembled check valve assemblies that comes in the exact configuration to install select pumps inside the skimmer. Available for external or submersible pumps.

    Hikari® Aquarium Solutions® Check Valve 2-PackHikari® Aquarium Solutions® Check Valve 2-Pack
    Hikari® Aquarium Solutions® Check Valves eliminate the risk of water siphoning backward through the aquarium airline and damaging your pump or causing an electrical short. This high quality neoprene valve provides the ideal cracking pressure to reduce surging and provide long life.

      PerformancePro Slip Fitting Swing Check Valves - Available in Clear or WhitePerformancePro Slip Fitting Swing Check Valves - Available in Clear or WhitePerformance Pro offers the following Slip-to-Slip Swing Check Valves: 1.5", 2", 3" or 4" in solid white; 1.5", 2" or 3" in clear.
      MPCV-15 MPCV-20 MPCV-30 MPCV-40 MPCV-15C MPCV-20C MPCV-30C
      Pitless Adapter - Make Any Fitting a Quick Connect Fitting!Pitless Adapter - Make Any Fitting a Quick Connect Fitting!Pitless adapter
      Savio Skimmerfilter™ / Water Master™ Discharge KitsSavio Skimmerfilter™ / Water Master™ Discharge KitsThese Savio Discharge Kits are designed for use with Savio Standard or Compact Skimmerfilter™ and Water Master™ Solids or Clear Pumps. Kits are set at proper height to exit the Savio Skimmerfilters™.
      Savio Skimmerfilter™ Discharge Kit for ShinMaywa/Tsurumi PumpsSavio Skimmerfilter™ Discharge Kit for ShinMaywa/Tsurumi PumpsThis Savio Discharge Kit is designed for the use of ShinMaywa or Tsurumi pumps inside Savio Standard Skimmerfilter™, easing the installation PVC Flex pipe and the connecting and disconnecting of the pump.
      Savio Waterfall Well / Water Master™ Clear Discharge KitsSavio Waterfall Well / Water Master™ Clear Discharge KitsThese Savio Discharge Kits are designed for use with Savio Waterfall Well or Waterfall Well Extension and Water Master™ Clear Pumps. Kits are set at proper height to exit the Savio Waterfall Well.
      White PVC Spring Check Valves - Female Threaded Ends (FPT)White PVC Spring Check Valves - Female Threaded Ends (FPT)Check valves are essential when using a waterfall filter in conjunction with a pond skimmer. The check valve will prevent back-flowing into the skimmer when the pump is switched off. Check valves are also essential when an external pump is being used. 
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